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The Influence of personality traits and beliefs about medicines on adherence to asthma treatment
Högskolan Väst, Avd för specialistsjuksköterskeutbildning.ORCID iD: 0000-0001-7367-715X
Högskolan Väst, Avd för sjuksköterskeutbildning.ORCID iD: 0000-0002-7182-511X
Krefting Research center.
Department of Internal Medicine/Respiratory Medicine and Allergology, Sahlgrenska University Hospital.
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2011 (English)In: Primary Care Respiratory Journal, ISSN 1471-4418, E-ISSN 1475-1534, Vol. 20, no 2, p. 141-147Article, review/survey (Refereed) Published
Abstract [en]

Aim:To explore the influence of personality traits and beliefs about medicines on adherence to treatment with asthma medication.

Methods:Respondents were 35 asthmatic adults prescribed controller medication. They answered questionnaires about medication adherence, personality traits, and beliefs about medicines.

Results:In gender comparisons, the personality traits “Neuroticism” in men and “adherence to medication” were associated with lower adherent behaviour. Associations between personality traits and beliefs in the necessity of medication for controlling the illness were identified. Beliefs about the necessity of medication were positively associated with adherent behaviour in women. In the total sample, a positive “necessity-concern” differential predicted adherent behaviour.

Conclusion:The results imply that personality and beliefs about medicines may influence how well adults with asthma adhere to treatment with asthma medication.

Place, publisher, year, edition, pages
The Primary Care Respiratory Society U K , 2011. Vol. 20, no 2, p. 141-147
Keywords [en]
adherence, asthma, medication beliefs, personality traits, treatment
National Category
Nursing
Research subject
NURSING AND PUBLIC HEALTH SCIENCE, Nursing science
Identifiers
URN: urn:nbn:se:liu:diva-142759DOI: 10.4104/pcrj.2011.00005OAI: oai:DiVA.org:liu-142759DiVA, id: diva2:1154261
Available from: 2011-02-18 Created: 2017-11-02 Last updated: 2017-11-29Bibliographically approved
In thesis
1. Treatment adherence in Asthma and Attention Deficit Hyperactivity Disorder (ADHD), Personality traits, Beliefs about medication and Illness perception
Open this publication in new window or tab >>Treatment adherence in Asthma and Attention Deficit Hyperactivity Disorder (ADHD), Personality traits, Beliefs about medication and Illness perception
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Adherence to medication in asthma and attention deficit hyperactivity disorder (ADHD) is important because medication may prevent serious consequences, possibly with lifelong effects. Several factors have been identified that influence adherence to medication in these disorders, but the importance of personality traits, beliefs about medication and illness perception has been insufficiently explored.

The overall aim of this thesis was to study adherence to medication in asthma and ADHD, and in particular factors associated with adherence.

The participants (n=268) in Study I were recruited epidemiologically and consisted of young adults with asthma, aged 22 years (±1 year). Impulsivity and, in men Antagonism and Alexithymia were associated with low adherence among respondents with regular asthma medication (n=109).

The participants (n=35) in Study II were recruited from primary care clinics and consisted of adults (mean age 53 years). In men, Neuroticism was associated with low adherence, but Conscientiousness with high adherence. Beliefs about the necessity of medication were positively associated with adherence behaviour in women. In the total sample, a positive necessity-concern differential of beliefs predicted higher adherence.

The participants in Study III, IV (n=101) and V (n=99) were recruited from Child and Adolescent Psychiatric clinics and consisted of adolescents with ADHD on long-term ADHD medication. Study IV assessed the reliability and validity of Swedish translations of the Beliefs about Medicines Questionnaire-specific (BMQ-Specific) and Brief Illness Perception Questionnaire (B-IPQ) for use in adolescents with ADHD. Exploratory Principal Component Analysis (PCA) loadings of the BMQ-Specific items confirmed the original components, the specific-necessity and specific-concerns. The exploratory PCA for B-IPQ revealed two components; the first one, B-IPQ Consequences, captured questions regarding perceptions of the implication of having ADHD (items 1, 2, 5, 6 and 8) and the second one, B-IPQ-Control, the perceptions of the ability to manage the ADHD disorder (items 3, 4 and 7). Adherence correlated positively with BMQ-necessity-concern differential but negatively with beliefs about medication regarding concerns and side effects as well as Antagonism. Adolescents with more beliefs in the necessity, but with less concerns and side effects were less intentionally non-adherent. Adolescents with more perceptions that ADHD affected life showed less unintentional non-adherence. Negative Affectivity was associated with beliefs in the necessity of medication, but also with concern about medication and side effects. Negative Affectivity was positively associated with perceived consequences in life caused by ADHD and less control over ADHD. Hedonic Capacity was associated with less concerns about medication.

In conclusion: In asthma and ADHD, adherence was associated with personality and beliefs about medications treatment. The personality traits showed numerous associations with perception about ADHD and beliefs about asthma and ADHD medication. This thesis increases our understanding of these person-related underlying factors of non-adherence, which may enable targeted actions intended to turn non-adherence into adherence as well as to identify individuals at risk for non-adherence. The Swedish translation of BMQ-Specific and B-IPQ proved to be valid and reliable, suggesting that the scales are useful in clinical work to identify risks of low adherence and to increase knowledge about how adolescents perceive ADHD. 

Abstract [sv]

Följsamhet till läkemedelsbehandling vid astma och ADHD (attention deficit hyperactivity disorder) är viktigt eftersom optimal behandling kan förebygga allvarliga och livslånga konsekvenser. Flera faktorer som påverkar följsamhetsbeteendet har tidigare identifierats exempelvis ekonomiska faktorer, men vikten av personlighetsdrag, uppfattning om läkemedel och sjukdomsuppfattning har tidigare inte undersökts tillräckligt. Det övergripande syftet för avhandlingen var att studera följsamhet till läkemedel hos personer med astma och ADHD och i synnerhet påverkande faktorer. Avhandlingen utgörs av fem delstudier.

Personlighet kan beskrivas som grundläggande egenskaper som kännetecknar likheter och skillnader mellan individer, den så kallade egenskapsteorin. Personlighet kan beskrivas utifrån fem grundläggande personlighetsdrag: känslomässig instabilitet, utåtriktning, öppenhet, vänlighet och målmedvetenhet, den så kallade fem-faktor modellen. När det gäller uppfattning om läkemedel så vägs uppfattningen om nödvändigheten av läkemedelsbehandlingen för att kontrollera sjukdomen mot oron för läkemedlens negativa effekter-biverkningar. Följsamhetsbeteendet beror på vilken uppfattning som dominerar. Uppfattning om sjukdom påverkas bland annat av personens uppfattning om hur mycket sjukdomen påverkar personens liv och sjukdomens varaktighet.

Resultaten av denna avhandling visar att följsamheten var högre hos tonåringar med ADHD än hos vuxna med astma. Följsamheten till astma- och ADHD-medicinering var signifikant associerad med uppfattning att läkemedel var nödvändigt såväl som personlighetsdragen, särskilt antagonism. Följsamheten var inte associerad med ålder eller kön. Med anledning av att kön är relaterad till andra faktorer bör det beaktas i utredning av följsamhet till läkemedel. Personlighetsdraget känslomässig instabilitet, var relaterat till många uppfattningar om läkemedlen och sjukdomsuppfattningar. Avhandlingen visar på sambandet mellan vissa personrelaterade faktorer och följsamhet till läkemedel, hos personer med astma och ADHD. Den svenska översättningen av frågeformulären: Uppfattning om läkemedel (BMQ-Specific) och Uppfattning om ADHD (B-IPQ) visade sig ha god kvalitet för användning i kliniska utvärderingar och forskning som involverar ungdomar med ADHD.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2017. p. 80
Series
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1597
Keywords
ADHD, adherence, asthma, beliefs about medication, illness perception, personality
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
urn:nbn:se:liu:diva-142757 (URN)10.3384/diss.diva-142757 (DOI)9789176854167 (ISBN)
Public defence
2017-12-08, Berzeliussalen, ingång 65, Campus US, Linköping, 13:00 (English)
Opponent
Supervisors
Available from: 2017-11-02 Created: 2017-11-02 Last updated: 2019-12-13Bibliographically approved

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