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  • 1.
    Ahlstrand, I.
    et al.
    School of Health Sciences, Jönköping University, Jönköping, Sweden.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Falkmer, Torbjörn
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Sinnescentrum, Smärt och rehabiliteringscentrum. School of Health Sciences, Jönköping University, Jönköping, Sweden; School of Occupational Therapy and Social Work, CHIRI, Curtin University, Perth, WA, Australia.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Björk, Mathilda
    Linköpings universitet, Institutionen för klinisk och experimentell medicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Rehabenheten. School of Health Sciences, Jönköping University, Jönköping, Sweden.
    Pain and activity limitations in women and men with contemporary treated early RA compared to 10 years ago: the Swedish TIRA project2015Inngår i: Scandinavian Journal of Rheumatology, ISSN 0300-9742, E-ISSN 1502-7732, Vol. 44, nr 4, s. 259-264Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives: To study differences regarding pain and activity limitations during the 3 years following diagnosis in women and men with contemporary treated early RA compared with their counterparts who were diagnosed 10 years earlier. Method: This study was based on patients recruited to the Early Intervention in RA (TIRA) project. In the first cohort (TIRA-1) 320 patients were included in time for diagnosis during 1996-1998 and 463 patients were included in the second cohort (TIRA-2) during 2006-2009. Disease activity, pain intensity (Visual Analogue Scale, VAS), bodily pain (BP) in the 36-item Short Form Health Survey (SF-36), activity limitations (Health Assessment Questionnaire, HAQ), and medication were reported at inclusion and at follow-up after 1, 2, and 3 years. Results: Disease activity, pain, and activity limitations were pronounced at inclusion across both genders and in both cohorts, with some improvement observed during the first year after diagnosis. Disease activity did not differ between cohorts at inclusion but was significantly lower at the follow-ups in the TIRA-2 cohort, in which the patients were prescribed traditional disease-modifying anti-rheumatic drugs (DMARDs) and biological agents more frequently. In TIRA-2, patients reported significantly lower pain and activity limitations at all follow-ups, with men reporting lower pain than women. Women reported significantly higher activity limitations at all time points in TIRA-2. Conclusions: Pain and activity limitations were still pronounced in the contemporary treated early RA cohort compared with their counterparts diagnosed 10 years earlier and both of these factors need to be addressed in clinical settings.

  • 2.
    Alonso, Juan-Manuel
    et al.
    Int Assoc Athlet Federat, Med & Antidoping Commiss, Monaco, Monaco; Qatar Orthoped & Sports Med Hosp, Sports Med Dept, Aspetar, Doha, Qatar.
    Jacobsson, Jenny
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Hälsouniversitetet. Region Östergötland, Centrum för hälso- och vårdutveckling, Folkhälsocentrum.
    Ronsen, Ola
    Int Assoc Athlet Federat, Med & Antidoping Commiss, Monaco, Monaco; Aker Solut, Lysaker, Norway.
    Kajenienne, Alma
    Int Assoc Athlet Federat, Med & Antidoping Commiss, Monaco, Monaco; Lithuanian Univ Hlth Sci, Inst Sport, Kaunas, Lithuania.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutionen för beteendevetenskap, Institutet för handikappvetenskap, IHV.
    Spreco, Armin
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Hälsouniversitetet.
    Edouard, Pascal
    Univ Hosp St Etienne, Fac Med, Sports Med Unity, Dept Clin & Exercise Physiol, St Etienne, France; Univ Lyon, Exercise Physiol Lab, LPE EA 4338, St Etienne, France; French Athlet Federat, Med Commiss, Paris, France.
    Preparticipation injury complaint is a risk factor for injury: a prospective study of the Moscow 2013 IAAF Championships.2015Inngår i: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 49, nr 17, s. 1118-U45Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVES: To determine the health status of athletes before the start of an international athletics championship and to determine whether preparticipation risk factors predicted in-championship injuries.

    METHODS: At the beginning of the 2013 International Association of Athletics Federations (IAAF) World Championships, all registered athletes (n=1784) were invited to complete a preparticipation health questionnaire (PHQ) on health status during the month preceding the championships. New injuries that occurred at the championships were prospectively recorded.

    RESULTS: The PHQ was completed by 698 (39%) athletes; 204 (29.2%) reported an injury complaint during the month before the championships. The most common mode of onset of preparticipation injury complaints was gradual (43.6%). Forty-nine athletes in the study reported at least one injury during the championships. Athletes who reported a preparticipation injury complaint were at twofold increased risk for an in-championship injury (OR=2.09; 95% CI 1.16 to 3.77); p=0.014). Those who reported a preparticipation gradual-onset injury complaint were at an almost fourfold increased risk for an in-championship time-loss injury (OR=3.92; 95% CI 1.69 to 9.08); p=0.001). Importantly, the preparticipation injury complaint severity score was associated with the risk of sustaining an in-championship injury (OR=1.14; 95% CI 1.06 to 1.22); p=0.001).

    SUMMARY AND CONCLUSIONS: About one-third of the athletes participating in the study reported an injury complaint during the month before the championships, which represented a risk factor for sustaining an injury during the championship. This study emphasises the importance of the PHQ as a screening tool to identify athletes at risk of injuries before international championships.

  • 3.
    Andin, Josefine
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Fransson, Peter
    Karolinska institutet, Department of Clinical Neuroscience.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Deaf signers are less reliant than hearing non-signers on fact retrieval from verbal long term memory during arithmetic processing: fMRI evidence2015Konferansepaper (Fagfellevurdert)
  • 4.
    Andin, Josefine
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Fransson, Peter
    Karolinska institutet, Department of Clinical Neuroscience.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Greater reliance on magnitude manipulation during mental arithmetic in deaf signers compared to hearing non-signers: fMRI evidence2015Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Evidence suggests that the lag reported in mathematics for deaf signers derives from difficulties related to verbal processing of numbers, whereas magnitude processing seems unaffected by deafness. Neuroimaging evidence from hearing individuals suggests that verbal processing of numbers engages primarily left angular gyrus (lAG), whereas magnitude processing engages primarily the horizontal portion of the right intraparietal sulcus (rHIP). In a ROI analysis of brain imaging data from 16 adult deaf signers and 16 adult hearing non-signers, who did not differ on sex, age or education, we examined if activity in lAG and rHIP changed as a result of task (multiplication vs subtraction) and group (deaf signers and hearing non-signers). We found a significant main effect of brain region (F(1,30) = 117.00, p < .001, η_p^2 = .80) and an interaction effect between region and group (F(1,30) = 20.70, p < .001, η_p^2 = .41). Further analyses showed that there were no significant differences in average activation between groups in lAG (F(1,30) = 0.16, p = .70). However, in rHIP deaf signers showed significantly greater average activation compared to non-signers (F(1,30) = 15.20, p < .001, η_p^2 = .34). There were no significant differences in activation between subtraction and multiplication (F(1,30) = 0.66, p = .42) and no behavioural differences between groups (F(1,30) = 1.70, p = .20). These results suggest that when engaging in arithmetic tasks deaf signers successfully make use of qualitatively difference processes, compared to hearing non-signers, with stronger emphasis on brain regions relating to magnitude manipulation.

  • 5.
    Andin, Josefine
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Fransson, Peter
    Karolinska Institutet.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rudner, Mary
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Deaf signers and hearing non-signers recruit similar networks for arithmetic and phonological tasks2013Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    Profoundly deaf individuals sometimes have difficulty with arithmetic and phonological tasks. In the present study we investigate if these differences can be attributed to differences in recruitment of neurobiological networks. Seventeen hearing non-signers (HN) and sixteen deaf signers (DS) matched on age, gender and non-verbal intelligence took part in an fMRI study. In the scanner three digit/letter pairs were visually presented and the participants performed six different blocked tasks tapping processing of digit and letter order, multiplication, subtraction and phonological ability. Data were analysed using two 2x2x2 ANOVAs; process (arithmetic, language) x level (high, low) x group (DS, HN). A main effect of process revealed language networks in the left inferior frontal gryus, supramarginal gyrus, fusiform gyrus and insula. Arithmetic networks included left middle orbital gyrus and superior medial gyrus. A main effect of level revealed low level processing (digit/letter order) in the right middle occipital gyrus and the right precuneus and high level processing (subtraction/multiplication/phonological ability) in left inferior frontal gyrus. There was no main effect of group but a significant task x group interaction in the right temporal pole which in DS (but not HN) was activated more for arithmetic than language processing (pfwe = .022) when multiplication was included in the analysis. This region is implicated in conceptual representation. These results suggest that both arithmetic and language are processed similarly by DS and HN with possible between-group differences in the use of conceptual representation in arithmetic and language tasks.

  • 6.
    Andin, Josefine
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Fransson, Peter
    Department of Clinical Neuroscience, Karolinska institute, Stockholm, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Deaf signers use magnitude manipulatioin strategies for mulitplication: fMRI evidence2014Manuskript (preprint) (Annet vitenskapelig)
    Abstract [en]

    Evidence suggests that the lag reported in mathematics for deaf signers derives from difficulties related to the verbal system of number processing as described in the triple code model. For hearing individuals the verbal system has been shown to be recruited for both arithmetic and language tasks. In the present study we investigate for the first time neuronal representations of arithmetic in deaf signers. We examine if the neural network supporting arithmetic and language, including the horizontal portion of the intraparietal sulcus (HIPS), the superior parietal lobule (SPL) bilaterally, the left angular gyrus (AG), pars opercularis (POPE) and pars triangularis (PTRI) of the left inferior frontal gyrus (IFG), is differently recruited for deaf and hearing individuals. Imaging data were collected from 16 deaf signers and 16 well-matched hearing nonsigners, using the same stimulus material for all tasks, but with different cues. During multiplication, deaf signers recruited rHIPS more than hearing non-signers, suggesting greater involvement of magnitude manipulation processes related to the quantity system, whereas there was no evidence that the verbal system was recruited. Further, there was no support for the notion of a common representation of phonology for sign and speech as previously suggested.

  • 7.
    Andin, Josefine
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Fransson, Peter
    Karolinska institutet, Stockholm.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Multiplication engages phonological networks in Broca's area differently for deaf signers and hearing non-signers2012Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    In hearing individuals, multiplication relies mainly on the phonological loop while subtraction relies on the visuo-spatial sketchpad (VSSP; Lee & Kang, 2002). Little is known about arithmetic neural networks in deaf signers (DS). Since DS often perform worse than hearing non-signers (NH) on arithmetic in general and multiplication in particular (Traxler, 2000), we hypothesized that there are strategic differences between how groups recruit the phonological loop in multiplication, but not in subtraction, leading to differential activation of phonological processing areas in left inferior frontal gyrus (Broca’s area). We investigated this using a blocked fMRI-design in which nine DS and 17 HN matched on age, gender, education and non-verbal intelligence (Raven & Raven, 1998) were tested on tasks of multiplication, subtraction and phonology (rhyme). The contrasts rhyme versus multiplication and rhyme versus subtraction were examined across groups within the region of interest defined by a probability map of Broca’s area (Amunts, 1999). We observed a significant interaction between task (multiplication and rhyme) and group (F = 12.64, p = .034, FWE-corrected), where the HN showed higher activation for rhyme than for multiplication (T = 4.55, p = .001, FWE-corrected) whereas there were no differences in activations between tasks for DS. For subtraction versus rhyme no interaction with group was found. These results suggest that there are differences between DS and HN in the phonology dependent neural networks in Broca’s area used during multiplication, which may be part of the explanation for poorer performance in DS.

  • 8.
    Andin, Josefine
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Fransson, Peter
    Karolinska Inst, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Psykologi. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    The neural basis of arithmetic and phonology in deaf signing individuals2019Inngår i: Language, Cognition and Neuroscience, ISSN 2327-3798, E-ISSN 2327-3801, Vol. 34, nr 7, s. 813-825Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Deafness is generally associated with poor mental arithmetic, possibly due to neuronal differences in arithmetic processing across language modalities. Here, we investigated for the first time the neuronal networks supporting arithmetic processing in adult deaf signers. Deaf signing adults and hearing non-signing peers performed arithmetic and phonological tasks during fMRI scanning. At whole brain level, activation patterns were similar across groups. Region of interest analyses showed that although both groups activated phonological processing regions in the left inferior frontal gyrus to a similar extent during both phonological and multiplication tasks, deaf signers showed significantly more activation in the right horizontal portion of the inferior parietal sulcus. This region is associated with magnitude manipulation along the mental number line. This pattern of results suggests that deaf signers rely more on magnitude manipulation than hearing non-signers during multiplication, but that phonological involvement does not differ significantly between groups.Abbreviations: AAL: Automated Anatomy Labelling; fMRI: functional magnetic resonance imaging; HIPS: horizontal portion of the intraparietal sulcus; lAG: left angular gyrus; lIFG: left inferior frontal gyrus; rHIPS: right horizontal portion of the intraparietal sulcus

  • 9.
    Annerbäck, Eva-Maria
    et al.
    Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Centre for Clinical Research in Sörmland, Sörmland County Council, Uppsala University, Eskilstuna, Sweden.
    Svedin, Carl Göran
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barnafrid. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Child physical abuse: factors influencing the associations between self-reported exposure and self-reported health problems: a cross-sectional study2018Inngår i: Child and Adolescent Psychiatry and Mental Health, ISSN 1753-2000, E-ISSN 1753-2000, Vol. 12, artikkel-id 38Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background

    Child physical abuse (CPA) is an extensive public health problem because of its associations with poor health outcomes. The aim of this study was to examine which of the background factors of CPA committed by a parent or other caregiver relates to self-reported poor health among girls and boys (13; 15 and 17 years old): perpetrator, last year exposure; severity and frequency; socioeconomic load and foreign background.

    Methods

    In a cross-sectional study in a Swedish county (n = 8024) a path analysis was performed to evaluate a model where all background variables were put as predictors of three health-status variables: mental; physical and general health problems. In a second step a log linear analysis was performed to examine how the distribution over the health-status categories was different for different combinations of background factors.

    Results

    Children exposed to CPA reported poor health to a much higher extent than those who were not exposed. In the path analysis it was found that frequency and severity of abuse (boys only) and having experienced CPA during the last year, was significantly associated with poor health as well as socioeconomic load in the families. Foreign background was significantly negatively associated with all three health indicators especially for girls. Neither mother nor father as perpetrator remained significant in the path analysis, while the results from the log linear analyses showed that mother-abuse did in fact relate to poor general health and mental as well as physical health problems among boys and girls. Father-abuse was associated with poor mental health if severe abuse was reported. Poor mental health was also associated with mild father-abuse if exposure during the last year was reported.

    Conclusion

    Despite the limitations that cross-sectional studies imply, this study provides new knowledge about factors associated with poor health among physically abused children. It describes details of CPA that have significant associations to different aspects of poor health and thus what needs to be addressed by professionals within mental health providers and social services. Understanding how different factors may contribute to different health outcomes for exposed children is important in future research and needs further studies.

  • 10.
    Bertills, Karin
    et al.
    Jonkoping Univ, Sweden.
    Granlund, Mats
    Jonkoping Univ, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Augustine, Lilly
    Kristianstad Univ, Sweden.
    Relationships between physical education (PE) teaching and student self-efficacy, aptitude to participate in PE and functional skills: with a special focus on students with disabilities2018Inngår i: Physical Education and Sport Pedagogy, ISSN 1740-8989, E-ISSN 1742-5786, Vol. 23, nr 4, s. 387-401Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Students with disability show an increasing incidence of school failure. Quality teaching and appropriate support may foster high self-efficacy, a predictive factor for successful school outcomes. Physical Education (PE) can provide students with a context in which self-efficacy and participation are promoted leading to improved academic achievement. The transition into secondary school can be challenging for many students with increased educational demands, developmental changes and individual social identification coinciding. A disability may add to the challenge of success.Methods: Three groups of students, aged 13 years and enrolled in Swedish mainstream schools were targeted (n=439). Groups included students with 1.A diagnosed disability, 2.Low grades in PE (D-F) and 3.High grades (A-C) in PE. Questionnaires were collected and analyzed from 30/439 students with a diagnosed disability (physical, neuro-developmental and intellectual) from 26 classes, their classmates and their PE-teachers (n=25). Relationships between student self-reports and PE-teachers self-ratings were investigated. Also examined was the potential to which students functional skills could predict elevated general school self-efficacy, PE specific self-efficacy and aptitude to participate in PE. Results were compared with the total sample and between the three target groups (n=121).Results: For students with disabilities, better self-rated teaching skills were related to lower student perceived general school self-efficacy, PE specific self-efficacy and aptitude to participate in PE. The impact of classroom climate in PE was more obvious among students with disabilities. Perceived functional skills were associated with elevated general school self-efficacy, PE specific self-efficacy and aptitude to participate in PE. Better socio-cognitive functional skills had an overall positive effect on all outcomes. Students with disabilities reported results similar to the total sample, the D-F group scored lower and the A-C group higher than the total sample and the disability group. Elevated self-efficacy in PE is six times less probable in students with disabilities, compared to the A-C group.Conclusions: Our findings that better teacher planning and grading skills, are detrimental to students disadvantaged by disability is contradictive. Improving the establishment and communication of adapted learning standards at the transition to secondary school is a crucial and a predictive factor for promoting positive school experiences for students with disability. Students with disabilities need to be assured that the intended learning outcomes can be reached by doing activities differently than their typically functioning peers. Consideration of class composition is suggested as a means of promoting a positive learning climate, which would particularly benefit students with disabilities. Allocation of resources to support student socio-cognitive skills would improve experiences for the D-F group and likely promote a positive learning environment.

  • 11.
    Björk, Mathilda
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Rehabenheten. Jonköping University, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Wetterö, Jonas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Sjöwall, Christoffer
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Quality of life and acquired organ damage are intimately related to activity limitations in patients with systemic lupus erythematosus2015Inngår i: BMC Musculoskeletal Disorders, ISSN 1471-2474, E-ISSN 1471-2474, Vol. 16, nr 188Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Systemic lupus erythematosus (SLE) is an autoimmune multi-organ disease, characterized by episodes of disease flares and remissions over time, which may restrain affected patients ability to perform daily activities. The purpose of the present study was to characterize variation in activity limitations among well-defined SLE patients, and to describe disease phenotypes, acquired organ damage and their relations to activity limitation and self-reported health, respectively. Methods: The disease phenotypes were organized into 4 different clinical groups and logistic regression analyses were used to identify how an elevated health assessment questionnaire (HAQ) score was related to disease variables such as phenotypes, disease activity and damage accrual. Correlation and multiple linear regression analyses were used to examine the association between each group of variables - background variables, disease variables and self-reported measurements - and the degree of elevated HAQ. Results: We found a higher proportion of activity limitation in patients with skin and joint involvement compared to others. The presence of activity limitation, as detected by the HAQ instrument, was significantly associated with quality of life (EuroQol-5D) and accrual of organ damage using the Systemic Lupus International Collaborative Clinics/ACR damage index. Conclusions: The findings highlight the differing requirements of the multi-professional rehabilitation interventions for the various SLE phenotypes in order to optimize the clinical care of the patients.

  • 12.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Focus on Chronic Disease through Different Lenses of Expertise: Towards Implementation of Patient-Focused Decision Support Preventing Disability: The Example of Early Rheumatoid Arthritis2009Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Introduction: Rheumatoid arthritis (RA) is a chronic inflammatory disease. Treatment strategies emphasize early multi-professional interventions to reduce disease activity and to prevent disability, but there is a lack of knowledge on how optimal treatment can be provided to each individual patient.

    Aim: To elucidate how clinical manifestations of early RA are associated to disease and disability outcomes, to strive for greater potential to establish prognosis in early RA, and to facilitate implementation of decision support through analyses of the decision-making environment in chronic care.

    Methods: Multivariate statistics and mathematical modelling, as well as field observations and focus group interviews.

    Results: Decision support: A prognostic tree that predicted patients with a poor prognosis (moderate or high levels of DAS-28) at one year after diagnosis had a performance of 25% sensitivity, 90% specificity and a positive predictive value of 76%. Implementation of a decision support application at a rheumatology unit should include taking into account incentive structures, workflow and awareness, as well as informal communication structures. Prognosis: A considerable part of the variance in disease activity at one year after diagnosis could be explained by disease progression during the first three months after diagnosis. Using different types of knowledge – different expertise – prior to standardized data mining methods was found to be a promising when mining (clinical) data for new patterns that elicit new knowledge. Disease and disability: Women report more fatigue than men in early RA, although the difference is not consistently significant. Fatigue in early RA is closely and rather consistently related to disease activity, pain and activity limitation, as well as to mental health and sleep disturbance.

    Conclusion: A decision tree was designed to identify patients at risk of poor prognosis at one year after the diagnosis of RA. When constructing prediction rules for good or poor prognosis, including more measures of disease and disability progressions showed promise. Using different types of knowledge – different lenses of expertise – prior to standardized data mining methods was also a promising method when mining (clinical) data for new patterns that elicit new knowledge.

    Delarbeid
    1. Prognostic components and predictive modelling of prognosis in early RA
    Åpne denne publikasjonen i ny fane eller vindu >>Prognostic components and predictive modelling of prognosis in early RA
    (engelsk)Manuskript (Annet vitenskapelig)
    Abstract [en]

    Introduction: There is a need for tools that are easy to use in clinical practice supporting decision making upon treatment in early rheumatoid arthritis (RA). Aim: The aim was to identify components of prognosticators in early RA and to identify individual patients with a poor prognosis as early as possible.

    Methods: Two cohorts from the Swedish TIRA project including 320+408 patients with recent onset RA were included in the study. Disease activity was measured by C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and the 28-joint count disease activity score (DAS-28), and by the physicians’ global assessment of disease activity (PGA). Disability was assessed as activity limitation by the Swedish version of the Health Assessment Questionnaire (HAQ) and impairment was reported by pain on a visual analogue scale of 0–100 mm. Serological markers were rheumatoid factor (RF) and anti-CCP. RF was measured at the time for diagnosis, and anti-CCP at the time of diagnosis or at one or some of the follow-ups. If at least one anti-CCP test was positive, the patient was judged to be anti-CCP-positive. Assuming different clinical practice in the different cohorts, two different treatment strategies were assumed based on clinical practice in real-world settings. Principal Component Analysis and Multiple Linear Regression Analysis were used to identify prognosticators. Prediction rules were identified by data-driven approach, controlling for different treatment strategies.

    Results: Progression of disease and disability measures and inflammation measures the first three months after inclusion predicted a considerable part of DAS-28 at the 1-year follow-up. Serological markers had a larger explanatory power for men than for women. Anti-CCP was a significant predictor for men, but not for women. Two versions of rules, one for women and one for men, predicting good or poor prognosis at one year after inclusion were produced by using measures of disability (Health Assessment Questionnaire), DAS-28, relative change in DAS-28 during first three months, sex, and test of anti-CCP. The rules demanded high prognostic specificity but the prognostic sensitivity was moderate.

    Conclusion: A considerable part of DAS-28 at one year after inclusion could be explained by the first 3 months’ progression of disease, disability and inflammation. Anti-CCP was predictive for men but not for women, and needs further investigation. A decision tree predicting poor prognosis among individual early RA-patients showed high specificity and moderate sensitivity on a validationcohort. The medical informatics approach used, controlling for different treatment strategies, yields promising results and further studies will control for more specific differences in treatment strategies, e.g. different DMARDs initiated.

    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-18104 (URN)
    Tilgjengelig fra: 2009-05-06 Laget: 2009-05-06 Sist oppdatert: 2018-04-07bibliografisk kontrollert
    2. A simple method for heuristic modeling of expert knowledge in chronic disease: identification of prognostic subgroups in rheumatology
    Åpne denne publikasjonen i ny fane eller vindu >>A simple method for heuristic modeling of expert knowledge in chronic disease: identification of prognostic subgroups in rheumatology
    Vise andre…
    2008 (engelsk)Inngår i: eHealth Beyond the Horizon – Get IT There, IOS Press, 2008, Vol. 136, s. 157-162Konferansepaper, Publicerat paper (Fagfellevurdert)
    Abstract [en]

    Identification of prognostic subgroups is of key clinical interest at the early stages of chronic disease. The aim of this study is to examine whether representation of physicians' expert knowledge in a simple heuristic model can improve data mining methods in prognostic assessments of patients with rheumatoid arthritis (RA). Five rheumatology consultants' experiences of clinical data patterns among RA patients, as distinguished from healthy reference populations, were formally represented in a simple heuristic model. The model was used in K-mean-clustering to determine prognostic subgroups. Cross-sectional validation using physician's global assessment scores indicated that the simple heuristic model performed better than crude data made in identification of prognostic subgroups of RA patients. A simple heuristic model of experts' knowledge was found useful for semi-automatic data mining in the chronic disease setting. Further studies using categorical baseline data and prospective outcome variables are warranted and will be examined in the Swedish TIRA-program.

    sted, utgiver, år, opplag, sider
    IOS Press, 2008
    Serie
    Studies in Health Technology and Informatics, ISSN 0926-9630, E-ISSN 1879-8365 ; Vol. 136
    Emneord
    Knowledge engineering, Clinical Decision Support Systems, Semiautomated Data Mining, Rheumatoid Arthritis, Mathematical models in medicine
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-18106 (URN)000274308700026 ()18487724 (PubMedID)978-1-58603-864-9 (ISBN)978-1-60750-333-0 (ISBN)
    Konferanse
    21st International Congress of the European-Federation-for-Medical-Informatic (MIE2008), Gothenburg, Sweden, MAY 25-28, 2008
    Tilgjengelig fra: 2009-05-06 Laget: 2009-05-06 Sist oppdatert: 2018-04-07bibliografisk kontrollert
    3. Factors related to fatigue in women and men with early rheumatoid arthritis: The Swedish TIRA study
    Åpne denne publikasjonen i ny fane eller vindu >>Factors related to fatigue in women and men with early rheumatoid arthritis: The Swedish TIRA study
    2009 (engelsk)Inngår i: Journal of Rehabilitation Medicine, ISSN 1650-1977, E-ISSN 1651-2081, Vol. 41, nr 11, s. 904-912Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    Objective: To study whether there are differences between women and men, with regard to the reported level of fatigue, and to explore the strength of the relations between fatigue and disease activity, pain, sleep disturbance, mental health, and activity limitation in early rheumatoid arthritis, and also to explore the consistency of such findings.

    Design: Analyses and comparisons of cross-sectional data.

    Subjects. 276 patients, 191 women and 85 men, with early rheumatoid arthritis were included.

    Method: Patients were examined with respect to 28-joint count disease activity score, and disability variables reflecting pain, sleep disturbance, fatigue, mental health, and activity limitation, at follow-ups at one, two and three years after diagnosis.

    Results: Women reported somewhat more fatigue than men. Fatigue was closely and rather consistently related to disease activity, pain and activity limitation, and also to mental health and sleep disturbance.

    Conclusion: Although this study does not permit conclusions about causal directions, statistical relationships may be related to clinical conceptions about causation: When disease activity can be significantly reduced by pharmacological treatment, this may have a positive effect on fatigue. Specific treatment with respect to the mentioned disability aspects that are related to fatigue is also a clinically reasonable strategy.

    sted, utgiver, år, opplag, sider
    Uppsala, Sweden: FOUNDATION REHABILITATION INFORMATION, 2009
    Emneord
    Early rheumatoid arthritis, fatigue, sleep disturbance, sex
    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-18108 (URN)10.2340/16501977-0444 (DOI)000271102800008 ()19841842 (PubMedID)
    Tilgjengelig fra: 2009-05-06 Laget: 2009-05-06 Sist oppdatert: 2018-04-07bibliografisk kontrollert
    4. Designing a decision support system for existing clinical organizational structures: Considerations from a rheumatology clinic
    Åpne denne publikasjonen i ny fane eller vindu >>Designing a decision support system for existing clinical organizational structures: Considerations from a rheumatology clinic
    Vise andre…
    2006 (engelsk)Inngår i: Journal of medical systems, ISSN 0148-5598, E-ISSN 1573-689X, Vol. 30, nr 5, s. 325-331Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    The aim of this study was to identify the social and organizational requirements for a decision support system (DSS) to be implemented in a clinical rheumatology setting, utilizing data-mining techniques. Field observations and focus group interviews were used for data collection. The decision-making was found to be situated, patient-focused, and long-term in nature. At the same time, the main part of peer-to-peer communication was informal. Patient records were involved in almost every decision. The conclusion is that the main challenges, when introducing a DSS at a rheumatology unit, are adapting the system to informal communication structures and integrating it with patient records. Considering incentive structures, understanding workflow and incorporating awareness are relevant issues when addressing these issues in future studies.

    HSV kategori
    Identifikatorer
    urn:nbn:se:liu:diva-18111 (URN)10.1007/s10916-005-9000-1 (DOI)17068995 (PubMedID)
    Tilgjengelig fra: 2009-05-06 Laget: 2009-05-06 Sist oppdatert: 2018-04-07bibliografisk kontrollert
  • 13.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Learning during a collaborative final exam2012Inngår i: Educational Research and Evaluation, ISSN 1380-3611, E-ISSN 1744-4187, Vol. 18, nr 4, s. 321-332Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Collaborative testing has been suggested to serve as a good learning activity, for example, compared to individual testing. The aim of the present study was to measure learning at different levels of knowledge during a collaborative final exam in a course in basic methods and statistical procedures. Results on pre- and post-tests taken individually (N = 30) before and after the collaborative part of the final exam confirmed learning effects at the uni- and multi-structural levels, as well as on the relational level of Biggs’ structure of the observed learning outcome (SOLO) taxonomy (Biggs & Collins, 1982). Low performers at pre-test raised their test scores more than high performers. No differences could be generalized at the extended level of knowledge. Results also suggest that it might be preferable to collaborate without first deciding on questions individually. The experimental design can be applied when evaluating learning, at different levels of knowledge, during a variety of learning activities.

  • 14.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Learning effects of a final collaborative exam2011Konferansepaper (Annet vitenskapelig)
  • 15.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Prognostic rule generation controlling for treatment in early rheumatoid arthritis2009Konferansepaper (Annet vitenskapelig)
  • 16.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Psykologi. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Adami, Paolo Emilio
    Health and Science Department, International Association of Athletics Federations IAAF, Monaco / Department of Movement, Human and Health Sciences, University of Rome “Foro Italico”, Italy.
    Fagher, Kristina
    Rehabilitation Medicine Research Group, Lund University, Sweden.
    Jacobsson, Jenny
    Bargoria, Victor
    Gauffin, Håkan
    Region Östergötland, Centrum för kirurgi, ortopedi och cancervård, Ortopedkliniken i Linköping.
    Hansson, Per-Olof
    Andersson, Christer
    Bermon, Stéphane
    Health and Science Department, International Association of Athletics Federations IAAF, Monaco / LAMHESS, Université Côte d'Azur, France.
    Timpka, Toomas
    Region Östergötland, Centrum för hälso- och vårdutveckling, Folkhälsocentrum.
    Efficacy of pre-participation cardiac evaluation recommendations among athletes participating in World Athletics Championships2019Inngår i: European Journal of Preventive Cardiology, ISSN 2047-4873, E-ISSN 2047-4881, s. 1-11Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background Athletes competing in athletics (track and field) at international level may be participating with underlying undiagnosed life-threatening cardiovascular conditions. Our objective was to analyse variations in pre-participation cardiac evaluation prevalence among athletes participating in two International Association of Athletics Federations (IAAF) World Athletics Championships, with regard to the human developmental level and global region of their home countries, as well as athletes’ age category, gender, event group and medical insurance type.

    Design Cross-sectional web-based survey.MethodsA total of 1785 athletes competing in the IAAF World Under 18 Championships Nairobi 2017 and World Championships London 2017 were invited to complete a pre-participation health questionnaire investigating the experience of a pre-participation cardiac examination.

    Results A total of 704 (39%) of the athletes participated. Among these, 59% (60% of women; 58% of men) reported that they had been provided at least one type of pre-participation cardiac evaluation. Athletes from very high income countries, Europe and Asia, showed a higher prevalence of at least one pre-participation cardiac evaluation.

    Conclusions The prevalence of pre-participation cardiac evaluation in low to middle income countries, and the African continent in particular, needs urgent attention. Furthermore, increases in evaluation prevalence should be accompanied by the development of cost-effective methods that can be adopted in all global regions.

  • 17.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för medicinsk teknik. Linköpings universitet, Tekniska högskolan.
    Babic, Ankica
    Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska högskolan.
    Antonsson, Johan
    Linköpings universitet, Institutionen för medicinsk teknik, Medicinsk informatik. Linköpings universitet, Tekniska högskolan.
    Lönn, Urban
    Uppsala Universitet.
    Ahn, Henrik Casimir
    Linköpings universitet, Institutionen för medicin och vård, Thoraxkirurgi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärtcentrum, Thorax-kärlkliniken.
    Clustering as a data mining method in a Web-based system for thoracic surgery2001Inngår i: Journal of the Medical Informatics Association. Symposium Supplement, Washington: Hanley&Belfus , 2001, s. 888-Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Cluster analysis is one way of data mining from large amounts of information. Being able to perform series of analyses, varying clinical criteria and requests, expected results of the clustering might be truly rewarding. Instead of having a few hypotheses prepared and tested, medical experts can be surprised by obtaining a set of hypotheses to further validate and work on.

    Internet technologies enable a substantial flexibility that can be taken advantage of when implementing a Web-based tool. Division of Medical Informatics together with Linkoping Heart Center of the Linkoping University is developing procedures for multivariate clustering within the Web-based AssistMe1 system.

  • 18.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Backe, Stefan
    Karlstad University, Sweden Skövde University, Sweden .
    Ekberg, Joakim
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Janson, Staffan
    Karlstad University, Sweden .
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Centrum för hälso- och vårdutveckling, Folkhälsocentrum.
    Is "Football for All" Safe for All? Cross-Sectional Study of Disparities as Determinants of 1-Year Injury Prevalence in Youth Football Programs2012Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 7, nr 8Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Football (soccer) is endorsed as a health-promoting physical activity worldwide. When football programs are introduced as part of general health promotion programs, equal access and limitation of pre-participation disparities with regard to injury risk are important. The aim of this study was to explore if disparity with regard to parents educational level, player body mass index (BMI), and self-reported health are determinants of football injury in community-based football programs, separately or in interaction with age or gender. less thanbrgreater than less thanbrgreater thanMethodology/Principal Findings: Four community football clubs with 1230 youth players agreed to participate in the cross-sectional study during the 2006 season. The study constructs (parents educational level, player BMI, and self-reported health) were operationalized into questionnaire items. The 1-year prevalence of football injury was defined as the primary outcome measure. Data were collected via a postal survey and analyzed using a series of hierarchical statistical computations investigating associations with the primary outcome measure and interactions between the study variables. The survey was returned by 827 (67.2%) youth players. The 1-year injury prevalence increased with age. For youths with parents with higher formal education, boys reported more injuries and girls reported fewer injuries than expected; for youths with lower educated parents there was a tendency towards the opposite pattern. Youths reporting injuries had higher standardized BMI compared with youths not reporting injuries. Children not reporting full health were slightly overrepresented among those reporting injuries and underrepresented for those reporting no injury. less thanbrgreater than less thanbrgreater thanConclusion: Pre-participation disparities in terms of parents educational level, through interaction with gender, BMI, and self-reported general health are associated with increased injury risk in community-based youth football. When introduced as a general health promotion, football associations should adjust community-based youth programs to accommodate children and adolescents with increased pre-participation injury risk.

  • 19.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Avdelningen för kognition, utveckling och handikapp (CDD). Linköpings universitet, Filosofiska fakulteten.
    Danielsson, Henrik
    Have you seen it before? Collaborative memory for adolescents with intellectual disabilities and their assistants.2010Konferansepaper (Fagfellevurdert)
  • 20.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten.
    Danielsson, Henrik
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten.
    Andersson, Jan
    VTI, Linköping, Sweden.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten.
    The applied value of collaborative memory research in aging – Some critical comments2013Inngår i: Journal of Applied Research in Memory and Cognition, ISSN 2211-3681, Vol. 2, nr 2, s. 122-123Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [en]

    The article by Blumen, Rajaram, and Henkel (2013) raises some very interesting research topics. Using the aging population as the prime example, they also provide general recommendations for future research in the area of collaborative memory; ‘it's time to become more applied’, and we appreciate such a suggestion.

    The article spans many subfields and for obvious reasons, it is not possible to consider every potential issue in this field in one single article. In addition, there are several issues that could be either extended or added. We will in this commentary focus on issues we consider important for the understanding of the current literature, and we will add some from our own research.

  • 21.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Danielsson, Henrik
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Emilsson, Magnus
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Andersson, Jan
    VTI, Swedish National Road and Transport Research Institute, Linköping, Sweden.
    Does retrieval strategy disruption cause general and specific collaborative inhibition?2011Inngår i: Memory, ISSN 0965-8211, E-ISSN 1464-0686, Vol. 19, nr 2, s. 140-154Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The purpose of the experiment on collaborative memory was to investigate if the collaborative inhibition is due to collaborating pair's disruption of each others' retrieval strategies (the retrieval strategy disruption hypothesis, RSD). The participants' (N=36) task was to recall a list of 60 words individually and collaboratively. Retrieval strategies were manipulated by presenting word lists organised either by categories or by country of origin and adoption of retrieval strategies were examined by the adjusted ratio of clustering score. Half of the dyads received word lists organised by the same strategy and half of the dyads received word lists organised by different strategies. The results revealed a main effect of collaboration, i.e., collaborative recalled items were significantly fewer than the sum of the non-redundant individually recalled items. Both conditions (same strategies vs different strategies) suffered to the same extent from collaboration, which did not support the RSD hypothesis. However, focusing on words recalled individually but not collaboratively, dyads with different strategies, as predicted by the RSD, forgot more items during collaboration than did dyads with the same strategy. Additional results suggest that collaborative forgetting is mainly manifested by forgetting of non-overlapping items (as measured by individual recalls).

  • 22.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Jacobsson, Jenny
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för hälso- och vårdutveckling, Folkhälsocentrum.
    Overcoming the organization-practice barrier in sports injury prevention: A nonhierarchical organizational model2015Inngår i: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 25, nr 4, s. e414-e422Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The organization of sports at the national level has seldom been included in scientific discussions of sports injury prevention. The aim of this study was to develop a model for organization of sports that supports prevention of overuse injuries. The quality function deployment technique was applied in seminars over a two-season period to develop a national organizational structure for athletics in Sweden that facilitates prevention of overuse injuries. Three central features of the resulting model for organization of sports at the national level are (a) diminishment of the organizational hierarchy: participatory safety policy design is introduced through annual meetings where actors from different sectors of the sporting community discuss training, injury prevention, and sports safety policy; (b) introduction of a safety surveillance system: a ubiquitous system for routine collection of injury and illness data; and (c) an open forum for discussion of safety issues: maintenance of a safety forum for participants from different sectors of the sport. A nonhierarchical model for organization of sports at the national level - facilitated by modern information technology - adapted for the prevention of overuse injuries has been developed. Further research is warranted to evaluate the new organizational model in prospective effectiveness studies.

  • 23.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Johnsrude, Ingrid
    ent of Psychology and Centre for Neuroscience Studies, Queen's University, Kingston Ontario, Canada.
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Stenfelt, Stefan
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Teknisk audiologi. Linköpings universitet, Hälsouniversitetet.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Hälsouniversitetet.
    Individual differences in working memory capacity modulate frontal cortical activity while listening to speech in noise2012Konferansepaper (Annet vitenskapelig)
  • 24.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Johnsrude, Ingrid
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rönnberg, Jerker
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Rudner, Mary
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Working Memory Processing for Sign and Speech in Broca's area2011Konferansepaper (Annet vitenskapelig)
  • 25.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Signoret, Carine
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Dahl, Jakob
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Andersson, Gerhard
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Effects of cognitive load on neurophysiological activity among persons with tinnitus2017Konferansepaper (Annet vitenskapelig)
  • 26.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Psykologi. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Sjöwall, Christopher
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    The diagnostic accuracies of the 2012 SLICC criteria and the proposed EULAR/ACR criteria for systemic lupus erythematosus classification are comparable2019Inngår i: Lupus, ISSN 0961-2033, E-ISSN 1477-0962, Vol. 28, nr 6, s. 778-782Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In a joint effort, the European League Against Rheumatism (EULAR) and the American College of Rheumatology (ACR) recently proposed new criteria for the classification of systemic lupus erythematosus (SLE) with the overarching goal to identify potential participants for clinical studies. Herein, we present the first independent evaluation of these criteria in comparison with older classification grounds using an adult Scandinavian study population of confirmed SLE cases and individuals with SLE-mimicking conditions. We included 56 confirmed SLE cases meeting the 1982 ACR criteria (ACR-82) and/or the Fries diagnostic principle (antinuclear antibodies on at least one occasion plus involvement of at least two defined organ systems) and 55 controls with possible systemic autoimmune disease, including the presence of any SLE-related autoantibody. The proposed EULAR/ACR criteria showed a diagnostic sensitivity of 93% (95% confidence interval (CI), 0.83-0.98) compared with 83% (95% CI, 0.72-0.91) for the updated ACR criteria from 1997. The diagnostic accuracy of all tested classification grounds was fairly similar, achieving approximately 85%. However, the disease specificity of the EULAR/ACR criteria reached only 73% (95% CI, 0.59-0.83), which was comparable with the 2012 Systemic Lupus International Collaborating Clinics (SLICC) criteria, 75% (95% CI, 0.61-0.85), but clearly lower than for ACR-82, 94% (95% CI, 0.83-0.99). In this first independent evaluation of a limited number of cases, we found comparable results with respect to diagnostic sensitivity, specificity and accuracy regarding the SLICC-12 and the proposed EULAR/ACR classification criteria. However, their specificity for SLE appeared to be lower compared with ACR-82.

  • 27.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Skagerstrand, Åsa
    Örebro University Hospital, Audiological Research Center.
    Lyxell, Björn
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Thunberg, Per
    Örebro University, Department of Medical Physics.
    Sörqvist, Patrik
    University of Gävle, Department of Building, Energy and Environmental Engineering.
    Lundin, Margareta
    Örebro University Hospital, Audiological Research Center.
    Johnsrude, Ingrid
    University of Western Ontario, School of Communication Sciences and Disorders.
    Rudner, Mary
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Rönnberg, Jerker
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköping University, Linnaeus Centre HEAD.
    Möller, Claes
    Örebro University Hospital, Audiological Research Center.
    Cognitive training and effects on speech-in noise performance in normal hearing and hearing impaired individuals2015Konferansepaper (Annet vitenskapelig)
    Abstract [en]

    Cognitive training might have potential to improve speech understanding under adverse listening conditions. Here, we have examined the effects of a 5-week computer-based cognitive training program on speech-in-noise-performance, in normal hearing (NH) participants and in participants with mild-to-moderate sensorineural hearing loss (HI).

    Two groups, matched on gender and age (45-65 years), of 20 participants each (HI and NH respectively) are recruited. Participants perform four test-sessions; inclusion (t0), five weeks (t1), ten weeks (t2) and six months (t3). Training is performed either between t0 and t1, or between t1 and t2 (using a cross-over design), using the computer-based Cogmed training program, approximately 30-40 minutes per day, five days per week, during five weeks. At each session participants are tested in three different ways: (a) cognitive testing (KIPS, SICSPAN, TRT); (b) auditory performance (pure tone-audiometry (air- and bone-conduction) and speech audiometry (HINT, Swedish SPIN-test (SNR +4dB))); (c) cortical activation (MR sessions where participants performed a speech-in-noise task using Hagerman-sentences with steady-state speech-spectrum noise (SSN) and with two competing talkers). MR imaging is performed on a Philips Achieva 1.5 Tesla scanner using a sparse imaging technique in which stimuli are presented during the silent period between successive scans. Participants listen to auditory stimuli under eight different conditions: clear speech, SSN or two competing talkers (each at 90%, 50% and 0% intelligibility), and silent rest. Pre- and post-training, hearing disability is assessed by the Speech-Spatial-Qualities-Questionnaire.

    The study is on-going and behavioral results as well as results from fMRI will be presented.

  • 28.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet.
    Hass, Ursula
    Linköpings universitet, Institutionen för medicin och hälsa, Medicinsk teknologiutvärdering. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Designing a decision support system for existing clinical organizational structures: Considerations from a rheumatology clinic2006Inngår i: Journal of medical systems, ISSN 0148-5598, E-ISSN 1573-689X, Vol. 30, nr 5, s. 325-331Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim of this study was to identify the social and organizational requirements for a decision support system (DSS) to be implemented in a clinical rheumatology setting, utilizing data-mining techniques. Field observations and focus group interviews were used for data collection. The decision-making was found to be situated, patient-focused, and long-term in nature. At the same time, the main part of peer-to-peer communication was informal. Patient records were involved in almost every decision. The conclusion is that the main challenges, when introducing a DSS at a rheumatology unit, are adapting the system to informal communication structures and integrating it with patient records. Considering incentive structures, understanding workflow and incorporating awareness are relevant issues when addressing these issues in future studies.

  • 29.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Sinnescentrum, Smärt och rehabiliteringscentrum.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap.
    Prognostic rule generation controlling for treatment in early rheumatoid arthritis2009Konferansepaper (Annet vitenskapelig)
  • 30.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Sinnescentrum, Smärt och rehabiliteringscentrum.
    Thyberg, Mikael
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Sinnescentrum, Smärt och rehabiliteringscentrum.
    Factors related to fatigue in women and men with early rheumatoid arthritis (the Swedish TIRA study)2009Konferansepaper (Annet vitenskapelig)
  • 31.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Avdelningen för kognition, utveckling och handikapp (CDD). Linköpings universitet, Filosofiska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Folkhälsovetenskapligt centrum, Folkhälsovetenskapligt centrum.
    Hass, Ursula
    Linköpings universitet, Institutionen för medicin och hälsa, Medicinsk teknologiutvärdering. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet.
    A simple method for heuristic modeling of expert knowledge in chronic disease: identification of prognostic subgroups in rheumatology2008Inngår i: eHealth Beyond the Horizon – Get IT There, IOS Press, 2008, Vol. 136, s. 157-162Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Identification of prognostic subgroups is of key clinical interest at the early stages of chronic disease. The aim of this study is to examine whether representation of physicians' expert knowledge in a simple heuristic model can improve data mining methods in prognostic assessments of patients with rheumatoid arthritis (RA). Five rheumatology consultants' experiences of clinical data patterns among RA patients, as distinguished from healthy reference populations, were formally represented in a simple heuristic model. The model was used in K-mean-clustering to determine prognostic subgroups. Cross-sectional validation using physician's global assessment scores indicated that the simple heuristic model performed better than crude data made in identification of prognostic subgroups of RA patients. A simple heuristic model of experts' knowledge was found useful for semi-automatic data mining in the chronic disease setting. Further studies using categorical baseline data and prospective outcome variables are warranted and will be examined in the Swedish TIRA-program.

  • 32.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande. Linköpings universitet, Filosofiska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Medicincentrum, Länskliniken för Reumatologi i Östergötland.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Medicincentrum, Smärt- och rehabiliteringscentrum.
    Prognostic components and predictive modelling of prognosis in early RAManuskript (Annet vitenskapelig)
    Abstract [en]

    Introduction: There is a need for tools that are easy to use in clinical practice supporting decision making upon treatment in early rheumatoid arthritis (RA). Aim: The aim was to identify components of prognosticators in early RA and to identify individual patients with a poor prognosis as early as possible.

    Methods: Two cohorts from the Swedish TIRA project including 320+408 patients with recent onset RA were included in the study. Disease activity was measured by C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and the 28-joint count disease activity score (DAS-28), and by the physicians’ global assessment of disease activity (PGA). Disability was assessed as activity limitation by the Swedish version of the Health Assessment Questionnaire (HAQ) and impairment was reported by pain on a visual analogue scale of 0–100 mm. Serological markers were rheumatoid factor (RF) and anti-CCP. RF was measured at the time for diagnosis, and anti-CCP at the time of diagnosis or at one or some of the follow-ups. If at least one anti-CCP test was positive, the patient was judged to be anti-CCP-positive. Assuming different clinical practice in the different cohorts, two different treatment strategies were assumed based on clinical practice in real-world settings. Principal Component Analysis and Multiple Linear Regression Analysis were used to identify prognosticators. Prediction rules were identified by data-driven approach, controlling for different treatment strategies.

    Results: Progression of disease and disability measures and inflammation measures the first three months after inclusion predicted a considerable part of DAS-28 at the 1-year follow-up. Serological markers had a larger explanatory power for men than for women. Anti-CCP was a significant predictor for men, but not for women. Two versions of rules, one for women and one for men, predicting good or poor prognosis at one year after inclusion were produced by using measures of disability (Health Assessment Questionnaire), DAS-28, relative change in DAS-28 during first three months, sex, and test of anti-CCP. The rules demanded high prognostic specificity but the prognostic sensitivity was moderate.

    Conclusion: A considerable part of DAS-28 at one year after inclusion could be explained by the first 3 months’ progression of disease, disability and inflammation. Anti-CCP was predictive for men but not for women, and needs further investigation. A decision tree predicting poor prognosis among individual early RA-patients showed high specificity and moderate sensitivity on a validationcohort. The medical informatics approach used, controlling for different treatment strategies, yields promising results and further studies will control for more specific differences in treatment strategies, e.g. different DMARDs initiated.

  • 33.
    Dahlström, Örjan
    et al.
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten.
    Zetterqvist, Maria
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
    Lundh, Lars-Gunnar
    Department of Psychology, Lund University, Lund, Sweden..
    Svedin, Carl Göran
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Functions of Nonsuicidal Self-Injury: Exploratory and Confirmatory Factor Analyses in a Large Community Sample of Adolescents2015Inngår i: Psychological Assessment, ISSN 1040-3590, E-ISSN 1939-134X, Vol. 27, nr 1, s. 302-313Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Given that nonsuicidal self-injury (NSSI) is prevalent in adolescents, structured assessment is an essential tool to guide treatment interventions. The Functional Assessment of Self-Mutilation (FASM) is a self-report scale that assesses frequency, methods, and functions of NSSI. FASM was administered to 3,097 Swedish adolescents in a community sample. With the aim of examining the underlying factor structure of the functions of FASM in this sample, the adolescents with NSSI who completed all function items (n = 836) were randomly divided into 2 subsamples for cross-validation purposes. An exploratory factor analysis (EFA) was followed by a confirmatory factor analysis (CFA) using the mean and variance adjusted weighted least squares (WLSMV) estimator in the Mplus statistical modeling program. The results of the EFA suggested a 3-factor model (social influence, automatic functions, and nonconformist peer identification), which was supported by a good fit in the CFA. Factors differentiated between social/interpersonal and automatic/intrapersonal functions. Based on learning theory and the specific concepts of negative and positive reinforcement, the nonconformist peer identification factor was then split into 2 factors (peer identification and avoiding demands). The resulting 4-factor model showed an excellent fit. Dividing social functions into separate factors (social influence, peer identification, and avoiding demands) can be helpful in clinical practice, where the assessment of NSSI functions is an important tool with direct implications for treatment.

  • 34.
    Dalal, Koustuv
    et al.
    University of Örebro, Sweden .
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Centrum för hälso- och vårdutveckling, Folkhälsocentrum.
    Interactions between microfinance programmes and non-economic empowerment of women associated with intimate partner violence in Bangladesh: a cross-sectional study2013Inngår i: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 3, nr 12, s. 2941-Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: This study aims to examine the associations between microfinance programme membership and intimate partner violence (IPV) in different socioeconomic strata of a nationally representative sample of women in Bangladesh. Methods: The cross-sectional study was based on a nationally representative interview survey of 11 178 ever-married women of reproductive age (15-49 years). A total of 4465 women who answered the IPV-related questions were analysed separately using chi(2) tests and Cramers V as a measure of effect size to identify the differences in proportions of exposure to IPV with regard to microfinance programme membership, and demographic variables and interactions between microfinance programme membership and factors related to non-economic empowerment were considered. Results: Only 39% of women were members of microfinance programmes. The prevalence of a history of IPV was 48% for moderate physical violence, 16% for severe physical violence and 16% for sexual violence. For women with secondary or higher education, and women at the two wealthiest levels of the wealth index, microfinance programme membership increased the exposure to IPV two and three times, respectively. The least educated and poorest groups showed no change in exposure to IPV associated with microfinance programmes. The educated women who were more equal with their spouses in their family relationships by participating in decision-making increased their exposure to IPV by membership in microfinance programmes. Conclusions: Microfinance plans are associated with an increased exposure to IPV among educated and empowered women in Bangladesh. Microfinance firms should consider providing information about the associations between microfinance and IPV to the women belonging to the risk groups.

  • 35.
    Danielsson, Henrik
    et al.
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Andersson, Jan
    VTI.
    The more you remember the more you decide: Collaborative memory in adolescents with intellectual disability and their assistants2011Inngår i: Research in Developmental Disabilities, ISSN 0891-4222, E-ISSN 1873-3379, Vol. 32, nr 2, s. 470-476Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim of the present study was to investigate collaborative memory in adolescents withintellectual disabilities when collaborating with an assistant, and also the extent to whichdecisiveness is related to individual memory performance.Nineteen students with intellectual disabilities (mean age = 18.5, SD = 0.9) eachcollaborated with a teaching assistant (mean age 40.3, SD = 12.1) familiar from everydaywork in school. Pictures were presented individually. Recognition was performed in twoparts, first individually and thereafter collaboratively. The design involved 2 settings, onenatural (with equal encoding time) and another with equal individual memoryperformance (assistants had shorter encoding time than the students). Results showedcollaborative inhibition in this previously uninvestigated collaboration setting withadolescents with intellectual disabilities and their assistants. The assistants bothperformed higher and decided more than the students with intellectual disabilities inthe natural setting, but not in the equated performance setting. Inhibition was larger in theequated setting. The assistants’ decisiveness was moderately correlated with individualmemory performance. Implications for everyday life are discussed.

  • 36.
    Danielsson, Henrik
    et al.
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Emilsson, Magnus
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Andersson, Jan
    VTI.
    Opposites accord: Effects of individual performance variations on collaborative memory performance2009Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Collaborative memory is traditionally assessed among persons with presumed equal memory capability, which is not always true in ecological settings. We have investigated collaborative memory performances both when a difference in memory performance within the pair is provoked and when it is not. This was manipulated by different encoding times in a within participant design. 20 pairs were presented with a word list for later recall. The word list was firstly recalled individually and afterwards collaboratively for both memory difference conditions. Nominal recall (the sum of the individual nonredundant performances) and collaborative recall was calculated. An interaction between type of recall and difference in memory performance was found, where collaborative recall at same memory performance was especially impaired by net negative effects of collaboration. These results are discussed in relation to item analysis of which words were recalled.

  • 37.
    Ehn, Mattias
    et al.
    Orebro Univ Hosp, Sweden; Orebro Univ, Sweden; Orebro Univ, Sweden.
    Wahlqvist, Moa
    Orebro Univ Hosp, Sweden; Orebro Univ, Sweden; Orebro Univ, Sweden.
    Danermark, Berth
    Orebro Univ Hosp, Sweden; Orebro Univ, Sweden; Orebro Univ, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV). Orebro Univ, Sweden.
    Moller, Claes
    Orebro Univ Hosp, Sweden; Orebro Univ, Sweden; Orebro Univ, Sweden.
    Health, work, social trust, and financial situation in persons with Usher syndrome type 12018Inngår i: Work: A journal of Prevention, Assessment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 60, nr 2, s. 209-220Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Research has demonstrated that persons with Usher syndrome type 1 (USH1) have significantly poorer physical and psychological health compared to a reference group. PURPOSE: To explore the relation between work, health, social trust, and financial situation in USH1 compared to a reference group. MATERIAL: Sixty-six persons (18-65 y) from the Swedish Usher database received a questionnaire and 47 were included, 23 working and 24 non-working. The reference group comprised 3,049 working and 198 non-working persons. METHODS: The Swedish Health on Equal Terms questionnaire was used and statistical analysis with multiple logistic regression was conducted. RESULTS: The USH1 non-work group had a higher Odds ratio (95% CI) in poor psychological and physical health, social trust, and financial situation compared to the USH1 work group and reference groups. Age, gender, hearing, and vision impairment did not explain the differences. The relation between the USH1 work and non-work groups showed the same pattern as the reference groups, but the magnitude of problems was significantly higher. CONCLUSIONS: Both disability and unemployment increased the risk of poor health, social trust and financial situation in persons with USH1, but having an employment seemed to counteract the risks related to disability.

  • 38.
    Eriksson, Henrik
    et al.
    Linköpings universitet, Institutionen för datavetenskap, Interaktiva och kognitiva system. Linköpings universitet, Tekniska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för hälso- och vårdutveckling, Folkhälsocentrum. Linköpings universitet, Institutionen för datavetenskap, Interaktiva och kognitiva system. Linköpings universitet, Tekniska fakulteten.
    Spreco, Armin
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Strömgren, Magnus
    Dept. of Social and Economic Geography, Umeå University, Umeå, Sweden.
    Holm, Einar
    Dept. of Social and Economic Geography, Umeå University, Umeå, Sweden.
    Dynamic Multicore Processing for Pandemic Influenza Simulation.2016Inngår i: AMIA Annual Symposium Proceedings, American Medical Informatics Association , 2016, Vol. 2016, s. 534-540Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Pandemic simulation is a useful tool for analyzing outbreaks and exploring the impact of variations in disease, population, and intervention models. Unfortunately, this type of simulation can be quite time-consuming especially for large models and significant outbreaks, which makes it difficult to run the simulations interactively and to use simulation for decision support during ongoing outbreaks. Improved run-time performance enables new applications of pandemic simulations, and can potentially allow decision makers to explore different scenarios and intervention effects. Parallelization of infection-probability calculations and multicore architectures can take advantage of modern processors to achieve significant run-time performance improvements. However, because of the varying computational load during each simulation run, which originates from the changing number of infectious persons during the outbreak, it is not useful to us the same multicore setup during the simulation run. The best performance can be achieved by dynamically changing the use of the available processor cores to balance the overhead of multithreading with the performance gains of parallelization.

  • 39.
    Fagher, Kristina
    et al.
    Department of Health Sciences, Lund University, Sweden.
    Forsberg, Anna
    Department of Health Sciences, Lund University, Sweden, Skåne University Hospital, Lund, Sweden.
    Jacobsson, Jenny
    Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Athletics Research Center, Linköping University, Sweden.
    Timpka, Toomas
    Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för hälso- och vårdutveckling, Folkhälsocentrum. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten. Athletics Research Center, Linköping University, Sweden.
    Lexell, Jan
    Department of Health Sciences, Lund University, Sweden, Skåne University Hospital, Lund, Sweden.
    Paralympic athletes’ perceptions of their experiences of sports-related injuries, risk factors and preventive possibilities2016Inngår i: European Journal of Sport Science, ISSN 1746-1391, E-ISSN 1536-7290, Vol. 22, nr 8, s. 1240-1249Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Our knowledge of sports-related injuries in para-sport is limited and there are no data on how Paralympic athletes themselves perceive an injury. The aim of this qualitative study was to explore Paralympic athletes' perceptions of their experiences of sports-related injuries, risk factors and preventive possibilities. Eighteen Swedish Paralympic athletes with vision impairment, intellectual impairment, spinal cord injury, cerebral palsy, myelomeningocele, dysplasia and neuromuscular disorder, representing 10 different para-sports, were interviewed. The qualitative phenomenographic method was used to interpret the data. The analysis revealed nine categories of perceptions of experiences. The athletes perceived that their impairments were involved in the cause and consequential chains associated with a sports-related injury. Other categories that denoted and described these injuries were: sport overuse, risk behaviour, functional limitations, psychological stressors, the normalised pain, health hazards, individual possibilities to prevent sports-related injuries and unequal prerequisites. This qualitative study revealed that Paralympic athletes' perceptions of their experiences of sports-related injuries are complex and multifactorial, and in several ways differ from able-bodied athletes. This needs to be considered in the sports health and safety work within the Paralympic Movement as well as in the design of future injury surveillance systems and preventive programmes

  • 40.
    Fagher, Kristina
    et al.
    Rehabilitation Medicine Research Group, Department of Health Sciences, Lund University, Lund, Sweden.
    Jacobsson, Jenny
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för verksamhetsstöd och utveckling, Verksamhetsutveckling vård och hälsa.
    Lexell, Jan
    Rehabilitation Medicine Research Group, Department of Health Sciences, Lund University, Lund, Sweden; Department of Neurology and Rehabilitation Medicine, Skåne University Hospital, Lund, Sweden; Department of Health Science, Luleå University of Technology, Luleå, Sweden.
    An eHealth Application of Self-Reported Sports-Related Injuries and Illnesses in Paralympic Sport: Pilot Feasibility and Usability Study2017Inngår i: JMIR Human Factors, E-ISSN 2292-9495, Vol. 4, nr 4, artikkel-id e30Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Sport participation is associated with a risk of sports-related injuries and illnesses, and Paralympic athletes additional medical issues can be a challenge to health care providers and medical staff. However, few prospective studies have assessed sports-related injuries and illnesses in Paralympic sport (SRIIPS) over time. Advances in mobile phone technology and networking systems offer novel opportunities to develop innovative eHealth applications for collection of athletes self-reports. Using eHealth applications for collection of self-reported SRIIPS is an unexplored area, and before initiation of full-scale research of SRIIPS, the feasibility and usability of such an approach needs to be ascertained.

  • 41.
    Fagher, Kristina
    et al.
    Department of Health Sciences, Lund University, Sweden.
    Jacobsson, Jenny
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Timpka, Toomas
    Region Östergötland, Centrum för hälso- och vårdutveckling, Folkhälsocentrum. Linköpings universitet, Medicinska fakulteten. Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten. Athletics Research Center, Linköping University, Sweden.
    Lexell, Jan
    Department of Health Sciences, Lund University, Sweden; Skåne University Hospital, Lund, Sweden.
    The sports-related injuries and illnesses in paralympic sport study (SRIIPSS): a study protocol for a prospective longitudinal study2016Inngår i: BMC Sports Science, Medicine and Rehabilitation, ISSN 2052-1847, Vol. 8, nr 1, artikkel-id 28Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND:

    Paralympic sport provides sporting opportunities for athletes with a disability, with the Paralympic Games as the main event. Participation in sport is, however, associated with a significant risk for sustaining injuries and illnesses. Our knowledge of sports-related injuries and illnesses in Paralympic sport is very limited and there are no large-scale epidemiological cohort studies. The purpose here is to present a protocol for a prospective longitudinal study: The Sports-Related Injuries and Illnesses in Paralympic Sport Study (SRIIPSS).

    METHODS/DESIGN:

    An argument-based method for investigation of design problems was used to structure the study protocol. The primary requirement of the protocol is to allow prospective studies over time and include exposure to both training and competition. To reflect the complexity of Paralympic sport with athletes' pre-existing impairments, use of assistive equipment, pain and other and medical issues, it is required that the data collection system is specifically adapted to Paralympic sport. To allow the collection of data, at the same time as there is limited access to coaches and medical personnel, it is advantageous that data can be collected online directly from the athletes. Based on this a self-report athlete monitoring system will be developed, where the athletes can enter data weekly via their mobile phones or lap-tops. Data will be collected from around 100 Swedish Paralympic athletes for approximately 1 year, which will allow us to i) prospectively estimate the annual incidence of sports-related injuries and illnesses and ii) explore risk factors and mechanisms for sustaining sports-related injuries and illnesses based on athlete exposure and training loads.

    DISCUSSION:

    For effective implementation of injury and illness prevention measures, comprehensive epidemiological knowledge is required. This study will be the first prospective longitudinal self-report study of sports-related injuries and illnesses in Paralympic sport over a longer period of time. The results will eventually contribute to the development of evidence-based preventive measures specifically adapted to Paralympic sport in order to provide safe and healthy sport participation. Thereby, the project will be of relevance for Paralympic athletes at all levels and to the Paralympic Movement.

  • 42.
    Fredlund, Cecilia
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Centrum för social och affektiv neurovetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Svedin, Carl Göran
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barnafrid. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Wadsby, Marie
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Centrum för social och affektiv neurovetenskap. Linköpings universitet, Medicinska fakulteten.
    Jonsson, Linda
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barnafrid. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Närsjukvården i centrala Östergötland, Barn- och ungdomspsykiatriska kliniken.
    Pribe, Gisela
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Barnafrid. Linköpings universitet, Medicinska fakulteten. Lund Univ, Sweden.
    Adolescents motives for selling sex in a welfare state - A Swedish national study2018Inngår i: International Journal of Child Abuse & Neglect, ISSN 0145-2134, E-ISSN 1873-7757, Vol. 81, s. 286-295Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In addition to money or other compensation, other motives for selling sex may be important in a welfare country such as Sweden. The aim of this study was to carry out an exploratory investigation of adolescents motives for selling sex in a population-based survey in Sweden. A total of 5839 adolescents from the third year of Swedish high school, mean age 18.0 years, participated in the study. The response rate was 59.7% and 51 students (0.9%) reported having sold sex. Exploratory factor analysis and hierarchical cluster analysis were used to identify groups of adolescents according to underlying motives for selling sex. Further analyses were carried out for characteristics of selling sex and risk factors. Three groups of adolescents were categorized according to their motives for selling sex: Adolescents reporting; 1) Emotional reasons, being at a greater risk of sexual abuse, using sex as a means of self-injury and having a non-heterosexual orientation. 2) Material but no Emotional reasons, who more often receive money as compensation and selling sex to a person over 25 years of age, and 3) Pleasure or no underlying motive for selling sex reported, who were mostly heterosexual males selling sex to a person under 25 years of age, the buyer was not known from the Internet, the reward was seldom money and this group was less exposed to penetrative sexual abuse or using sex as a means of self-injury. In conclusion, adolescents selling sex are a heterogeneous group in regard to underlying motives.

    Fulltekst tilgjengelig fra 2021-05-05 00:01
  • 43.
    Frodlund, Martina
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Kastbom, Alf
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Sjöwall, Christopher
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Associations between antinuclear antibody staining patterns and clinical features of systemic lupus erythematosus: analysis of a regional Swedish register2013Inngår i: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 3, s. 1-8Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective Antinuclear antibody (ANA) analysis by immunofluorescence (IF) microscopy remains a diagnostic hallmark of systemic lupus erythematosus (SLE). The clinical relevance of ANA fine-specificities in SLE has been addressed repeatedly, whereas studies on IF-ANA staining patterns in relation to disease manifestations are very scarce. This study was performed to elucidate whether different staining patterns associate with distinct SLE phenotypes.

    Design Observational cohort study.

    Setting One university hospital rheumatology unit in Sweden.

    Participants The study population consisted of 222 cases (89% women; 93% Caucasians), where of 178 met ≥4/11 of the 1982 American College of Rheumatology (ACR-82) criteria. The remaining 20% had an SLE diagnosis based on positive IF-ANA (HEp-2 cells) and ≥2 typical organ manifestations at the time of diagnosis (Fries’ criteria).

    Outcome measures The IF-ANA staining patterns homogenous (H-ANA), speckled (S-ANA), combined homogenous and speckled (HS-ANA), centromeric (C-ANA), nucleolar (N-ANA)±other patterns and other nuclear patterns (oANA) were related to disease manifestations and laboratory measures. Antigen-specificities were also considered regarding double-stranded DNA (Crithidia luciliae) and the following extractable nuclear antigens: Ro/SSA, La/SSB, Smith antigen (Sm), small nuclear RNP (snRNP), Scl-70 and Jo-1 (immunodiffusion and/or line-blot technique).

    Results 54% of the patients with SLE displayed H-ANA, 22% S-ANA, 11% HS-ANA, 9% N-ANA, 1% C-ANA, 2% oANA and 1% were never IF-ANA positive. Staining patterns among patients meeting Fries’ criteria alone did not differ from those fulfilling ACR-82. H-ANA was significantly associated with the 10th criterion according to ACR-82 (‘immunological disorder’). S-ANA was inversely associated with arthritis, ‘immunological disorder’ and signs of organ damage.

    Conclusions H-ANA is the dominant IF-ANA pattern among Swedish patients with SLE, and was found to associate with ‘immunological disorder’ according to ACR-82. The second most common pattern, S-ANA, associated negatively with arthritis and organ damage.

  • 44.
    Frodlund, Martina
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Reid, S.
    Uppsala Univ, Sweden.
    Wetterö, Jonas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Psykologi. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Sjöwall, Christopher
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Leonard, D.
    Uppsala Univ, Sweden.
    The majority of Swedish systemic lupus erythematosus patients are still affected by irreversible organ impairment: factors related to damage accrual in two regional cohorts2019Inngår i: Lupus, ISSN 0961-2033, E-ISSN 1477-0962, artikkel-id UNSP 0961203319860198Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background Although the survival of patients with systemic lupus erythematosus (SLE) has improved, irreversible organ damage remains a critical concern. We aimed to characterize damage accrual and its clinical associations and causes of death in Swedish patients. Methods Accumulation of damage was evaluated in 543 consecutively recruited and well-characterized cases during 1998-2017. The Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology damage index (SDI) was used to estimate damage. Results Organ damage (SDI amp;gt;= 1) was observed in 59%, and extensive damage (SDI amp;gt;= 3) in 25% of cases. SDI amp;gt;= 1 was significantly associated with higher age at onset, SLE duration, the number of fulfilled SLICC criteria, neurologic disorder, antiphospholipid antibody syndrome (APS), hypertension, hyperlipidemia, depression and secondary Sjogrens syndrome (SS). In addition, SDI amp;gt;= 3 was associated with serositis, renal and haematological disorders and interstitial lung disease. A multiple regression model identified not only well-known risk factors like APS, antihypertensives and corticosteroids, but pericarditis, haemolytic anaemia, lymphopenia and myositis as being linked to SDI. Malignancy, infection and cardiovascular disease were the leading causes of death. Conclusions After a mean SLE duration of 17 years, the majority of todays Swedish SLE patients have accrued damage. We confirm previous observations and report some novel findings regarding disease phenotypes and damage accrual.

  • 45.
    Frodlund, Martina
    et al.
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Vikerfors, A.
    Karolinska Univ Hosp, Sweden; Swedish Med Prod Agcy, Sweden.
    Grosso, G.
    Karolinska Univ Hosp, Sweden.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Wetterö, Jonas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Elvin, K.
    Karolinska Inst, Sweden.
    Gunnarsson, I.
    Karolinska Univ Hosp, Sweden.
    Kastbom, Alf
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Ronnelid, J.
    Uppsala Univ, Sweden.
    Svenungsson, E.
    Karolinska Univ Hosp, Sweden.
    Sjöwall, Christopher
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Immunoglobulin A anti-phospholipid antibodies in Swedish cases of systemic lupus erythematosus: associations with disease phenotypes, vascular events and damage accrual2018Inngår i: Clinical and Experimental Immunology, ISSN 0009-9104, E-ISSN 1365-2249, Vol. 194, nr 1, s. 27-38Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Immunoglobulin (Ig) G- and IgM-class anti-cardiolipin antibodies (aCL) and lupus anti-coagulant (LA) are included in the 1997 update of the American College of Rheumatology (ACR-97) systemic lupus erythematosus (SLE) criteria. Despite limited evidence, IgA-aCL and IgA anti-(2)-glycoprotein-I (anti-(2)GPI) were included in the 2012 Systemic Lupus International Collaborating Clinics criteria. The present study aimed to evaluate IgG-/IgA-/IgM-aCL and anti-(2)GPI occurrence in relation to disease phenotype, smoking habits, pharmacotherapy, anti-phospholipid syndrome (APS) and organ damage among 526 Swedish SLE patients meeting ACR-97. Patients with rheumatoid arthritis (n=100), primary Sjogrens syndrome (n=50) and blood donors (n=507) served as controls. Anti-phospholipid antibodies (aPL) were analysed by fluoroenzyme-immunoassays detecting aCL/anti-(2)GPI. Seventy-six (14%) SLE cases fulfilled the Sydney APS-criteria, and 1 aCL/anti-(2)GPI isotype (IgG/IgA/IgM) occurred in 138 SLE patients (26%). Forty-five (9%) of the SLE cases had IgA-aCL, 20 of whom (4%) lacked IgG-/IgM-aCL. Seventy-four (14%) tested positive for IgA anti-(2)GPI, 34 (6%) being seronegative regarding IgG/IgM anti-(2)GPI. Six (1%) had APS manifestations but were seropositive regarding IgA-aCL and/or IgA anti-(2)GPI in the absence of IgG/IgM-aPL and LA. Positive LA and IgG-aPL tests were associated with most APS-related events and organ damage. Exclusive IgA anti-(2)GPI occurrence associated inversely with Caucasian ethnicity [odds ratio (OR)=021, 95% confidence interval (CI)=006-072) and photosensitivity (OR=019, 95% CI=005-072). Nephritis, smoking, LA-positivity and statin/corticosteroid-medication associated strongly with organ damage, whereas hydroxychloroquine-medication was protective. In conclusion, IgA-aPL is not rare in SLE (16%) and IgA-aPL analysis may have additional value among SLE cases with suspected APS testing negative for other isotypes of aPL and LA.

  • 46.
    Hallert, Eva
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Utvärdering och hälsoekonomi. Linköpings universitet, Hälsouniversitetet.
    Björk, Mathilda
    School of Health Sciences, Jönköping University, Jönköping, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Hälsouniversitetet.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Reumatologi. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Disease activity and disability in women and men with early rheumatoid arthritis: An 8-year follow-up of the Swedish TIRA project2012Inngår i: Arthritis Care and Research, ISSN 0893-7524, E-ISSN 1529-0123, Vol. 64, nr 8, s. 1101-1107Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVE: To compare women and men regarding course of disease activity and disability over 8 years from diagnosis of recent onset rheumatoid arthritis (RA). PATIENTS AND METHODS: 149 patients were followed for 8 years from RA diagnosis (1996-98) regarding 28-joint count disease activity score (DAS28), pain (visual analogue scale, VAS), grip force, Grip Ability Test (GAT), Signals of Functional Impairment (SOFI hand, upper/lower extremity), walking speed, activity limitation (Health Assessment Questionnaire, HAQ) and prescribed disease-modifying anti-rheumatic drugs (DMARDs). RESULTS: Disease activity pattern over time was similar in women and men, showing improvement during the first year and thereafter a stable situation during 6 years. However, at the 7- and 8-year follow-ups deterioration was seen with a less favourable course in women. HAQ did not differ between sexes at diagnosis, but at all follow-ups women had significantly higher scores than men. Women also had lower grip force and lower walking speed, but higher upper extremity mobility. DMARD prescription was similar for both sexes. Over eight years, disease duration, sex, biologics, grip force, SOFI-hand and pain intensity together explained 43% of the variation in DAS, while grip force, SOFI-lower, GAT and pain intensity could together explain 55% of variations in HAQ. CONCLUSIONS: Disease activity was fairly well managed, but disability gradually deteriorated. Despite similar medication, women had more disability than men. The discrepancy between disease activity and disability indicates unmet needs for multi-professional interventions to prevent progressing disability and patients at risk for disability need to be identified early in the process. © 2012 by the American College of Rheumatology.

  • 47.
    Hallert, Eva
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Utvärdering och hälsoekonomi. Linköpings universitet, Hälsouniversitetet.
    Björk, Mathilda
    Department of Rehabilitation, School of Health Sciences, Jönköping University, Jönköping, Sweden.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Thyberg, Ingrid
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Rehabiliteringsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Sinnescentrum, Smärt och rehabiliteringscentrum.
    Disability in women and men with early rheumatoid arthritis during 8 years after diagnosis 8the Swedish TIRA-study2010Konferansepaper (Annet vitenskapelig)
  • 48.
    Ighe, Anna
    et al.
    Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland. Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Institutet för handikappvetenskap (IHV). Linköpings universitet, Filosofiska fakulteten.
    Skogh, Thomas
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Sjöwall, Christopher
    Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för neuro- och inflammationsvetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Hjärt- och Medicincentrum, Reumatologiska kliniken i Östergötland.
    Application of the 2012 systemic lupus international collaborating clinics classification criteria to patients on a Regional Swedish systemic lupus erythematosus register2015Inngår i: Arthritis Research & Therapy, ISSN 1478-6354, E-ISSN 1478-6362, Vol. 17, artikkel-id 3Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Introduction

    In 2012, the Systemic Lupus International Collaborating Clinics (SLICC) network presented a new set of criteria (SLICC-12) to classify systemic lupus erythematosus (SLE). The present study is the first to evaluate the performance of SLICC-12 in an adult European study population. Thus, SLICC-12 criteria were applied to confirmed SLE cases in our regional SLE register as well as to individuals with a fair suspicion of systemic autoimmune disease who were referred to rheumatology specialists at our unit.     

    Methods

    We included 243 confirmed SLE patients who met the 1982 American College of Rheumatology (ACR-82) classification criteria and/or the Fries ‘diagnostic principle’ (presence  of antinuclear antibodies on at least one occasion plus involvement of at least two defined organ systems) and 55 controls with possible systemic autoimmune disease, including the presence of any SLE-related autoantibody.     

    Results

    SLICC-12 showed a diagnostic sensitivity of 94% (95% confidence interval (CI), 0.90 to 0.96) compared with 90% (95% CI, 0.85 to 0.93) for the updated set of ACR criteria from 1997 (ACR-97), whereas ACR-82 failed to identify every fifth true SLE case. However, the disease specificity of SLICC-12 reached only 74% (95% CI, 0.60 to 0.84) and did not change much when involvement of at least two different organs was required as an indicator of systemic disease. In addition, SLICC-12 misclassified more of the controls compared to ACR-82, ACR-97 and Fries.     

    Conclusions

    Establishing a standard definition of SLE continues to challenge lupus researchers and clinicians. We confirm that SLICC-12 has advantages with regard to diagnostic sensitivity, whereas we found the diagnostic specificity to be surprisingly low. To accomplish increased sensitivity and specificity figures, a combination of criteria sets for clinical SLE studies should be considered.

  • 49.
    Jacobsson, Jenny
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten.
    Bergin, D.
    Swedish Athlet Assoc, Sweden.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Centrum för verksamhetsstöd och utveckling, Verksamhetsutveckling vård och hälsa.
    Nyce, J. M.
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Medicinska fakulteten.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten. Linköpings universitet, Institutet för handikappvetenskap (IHV).
    Injuries in youth track and field are perceived to have multiple-level causes that call for ecological (holistic-developmental) interventions: A national sporting community perceptions and experiences2018Inngår i: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 28, nr 1, s. 348-355Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Engaging in competitive sports as a youth can have many health benefits, but recent studies also report a high risk for injury. The long-term purpose of this Swedish research program is to develop a framework for safe track and field training for young athletes (aged 12-15years). The aim of this study was to establish what is perceived to contribute and cause injuries in youth track and field by compiling the best available experiential knowledge about the underlying factors and use this knowledge to identify appropriate areas to handle these in practical ways. Nine focus group interviews with in total 74 participants and confirming interviews with five individuals were performed in seven Swedish regions. Qualitative research methods were used for data analysis. Injuries in youth athletes were not considered to be strictly the result of individual factors but rather the result of the interactions between factors at different levels. Three major factors emerged as follows: Insufficient knowledge for athletic development in daily practice; shortsighted communities of practice and sports policies not adjusted to youth; and societal health behaviors. The experiential knowledge in the national sporting community suggests that if effective and sustainable injury prevention processes are to be implemented for youth track and field, an ecological (holistic-developmental) approach to injury prevention is needed. Such an approach allows a longitudinal development-focused strategy for prevention that spans an athletes entire career.

  • 50.
    Jacobsson, Jenny
    et al.
    Linköpings universitet, Institutionen för medicin och hälsa. Linköpings universitet, Hälsouniversitetet.
    Timpka, Toomas
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Kowalski, Jan
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Nilsson, Sverker
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Ekberg, Joakim
    Linköpings universitet, Institutionen för medicin och hälsa, Socialmedicin och folkhälsovetenskap. Linköpings universitet, Hälsouniversitetet.
    Dahlström, Örjan
    Linköpings universitet, Institutionen för beteendevetenskap och lärande, Handikappvetenskap. Linköpings universitet, Filosofiska fakulteten.
    Renström, Per
    Karolinska Institutet, Department of Molecular Medicine and Surgery, Stockholm, Sweden.
    Injury patterns in Swedish elite athletics – part 1: annual incidence and injury types2013Inngår i: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 47, nr 15Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective To estimate the incidence, type and severity of musculoskeletal injuries in youth and adult elite athletics athletes and to explore risk factors for sustaining injuries. Design Prospective cohort study conducted during a 52-week period. Setting Male and female youth and adult athletics athletes ranked in the top 10 in Sweden (n=292). Results 199 (68%) athletes reported an injury during the study season. Ninety-six per cent of the reported injuries were non-traumatic (associated with overuse). Most injuries (51%) were severe, causing a period of absence from normal training exceeding 3 weeks. Log-rank tests revealed risk differences with regard to athlete category (p=0.046), recent previous injury (>3 weeks time-loss; p=0.039) and training load rank index (TLRI; p=0.019). Cox proportional hazards regression analyses showed that athletes in the third (HR 1.79; 95% CI 1.54 to 2.78) and fourth TLRI quartiles (HR 1.79; 95% CI 1.16 to 2.74) had almost a twofold increased risk of injury compared with their peers in the first quartile and interaction effects between athlete category and previous injury; youth male athletes with a previous serious injury had more than a fourfold increased risk of injury (HR=4.39; 95% CI 2.20 to 8.77) compared with youth females with no previous injury. Conclusions The injury incidence among both youth and adult elite athletics athletes is high. A training load index combing hours and intensity and a history of severe injury the previous year were predictors for injury. Further studies on measures to quantify training content and protocols for safe return to athletics are warranted.

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