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A consultation-based method is equal to SCORE and an extensive laboratory-based method in predicting risk of future cardiovascular disease
Linköpings universitet, Institutionen för medicin och hälsa, Allmänmedicin. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för medicin och hälsa, Allmänmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i västra Östergötland, Primärvården i västra länsdelen.
Linköpings universitet, Institutionen för medicin och hälsa, Klinisk fysiologi. Linköpings universitet, Hälsouniversitetet.
Department of Clinical Sciences, Lund University, University Hospital, Malmö , Sweden.
2009 (engelsk)Inngår i: European Journal of Cardiovascular Prevention & Rehabilitation, ISSN 1741-8267, E-ISSN 1741-8275, Vol. 16, nr 5, s. 536-540Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BACKGROUND: As cardiovascular disease (CVD) is one of the most common causes of mortality worldwide, much interest has been focused on reliable methods to predict cardiovascular risk.

DESIGN: A cross-sectional, population-based screening study with 17-year follow-up in Southern Sweden.

METHODS: We compared a non-laboratory, consultation-based risk assessment method comprising age, sex, present smoking, prevalent diabetes or hypertension at baseline, blood pressure (systolic >/=140 or diastolic >/=90), waist/height ratio and family history of CVD to Systemic COronary Risk Evaluation (SCORE) and a third model including several laboratory analyses, respectively, in predicting CVD risk. The study included clinical baseline data on 689 participants aged 40-59 years without CVD. Blood samples were analyzed for blood glucose, serum lipids, insulin, insulin-like growth factor-I, insulin-like growth factor binding protein-1, C-reactive protein, asymmetric dimethyl arginine and symmetric dimethyl arginine. During 17 years, the incidence of total CVD (first event) and death was registered.

RESULTS: A non-laboratory-based risk assessment model, including variables easily obtained during one consultation visit to a general practitioner, predicted cardiovascular events as accurately [hazard ratio (HR): 2.72; 95% confidence interval (CI): 2.18-3.39, P<0.001] as the established SCORE algorithm (HR: 2.73; 95% CI: 2.10-3.55, P<0.001), which requires laboratory testing. Furthermore, adding a combination of sophisticated laboratory measurements covering lipids, inflammation and endothelial dysfunction, did not confer any additional value to the prediction of CVD risk (HR: 2.72; 95% CI: 2.19-3.37, P<0.001). The c-statistics for the consultation model (0.794; 95% CI: 0.762-0.823) was not significantly different from SCORE (0.767; 95% CI: 0.733-0.798, P=0.12) or the extended model (0.806; 95% CI: 0.774-0.835, P=0.55).

CONCLUSION: A risk algorithm based on non-laboratory data from a single primary care consultation predicted long-term cardiovascular risk as accurately as either SCORE or an elaborate laboratory-based method in a defined middle-aged population.

sted, utgiver, år, opplag, sider
London, UK: Sage Publications, 2009. Vol. 16, nr 5, s. 536-540
Emneord [en]
Algorithm, cardiovascular, mortality, risk, screening
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-17691DOI: 10.1097/HJR.0b013e32832b1833ISI: 000271456200003PubMedID: 19357517OAI: oai:DiVA.org:liu-17691DiVA, id: diva2:211318
Tilgjengelig fra: 2009-04-14 Laget: 2009-04-14 Sist oppdatert: 2017-12-13bibliografisk kontrollert
Inngår i avhandling
1. Screening for Cardiovascular Risk and Diabetes in Primary Health Care: The Söderåkra Risk Factor Screening Study
Åpne denne publikasjonen i ny fane eller vindu >>Screening for Cardiovascular Risk and Diabetes in Primary Health Care: The Söderåkra Risk Factor Screening Study
2009 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Alternativ tittel[sv]
Screening för hjärtkärlrisk och diabetes i primärvården : Söderåkrastudien
Abstract [en]

Background: Cardiovascular disease (CVD) has been the predominant cause of morbidity and mortality for many decades in Sweden. Preventive work in primary health care through individual approach and community-based programmes has shown some success. Still, we need better risk assessment tools and health strategies to lessen the burden of CVD in our population.

Methods: This thesis is based on four studies that explore the cardiovascular risk factor pattern and its development to CVD morbidity and mortality in the middle-aged (40-59 years) population in Söderåkra, southern Sweden, 1989-2006. At a single physician consultation in 1989-1990 the participants provided information about lifestyle in a self-administered questionnaire, underwent a physical examination and received medical advice after a laboratory investigation. The laboratory tests consisted mainly of blood glucose, serum lipids and thyroid function tests. Blood samples were also frozen for later analyses. A telephone interview on self-reported lifestyle changes was conducted ten years later. In 2006, primary health care medical records were studied for incident diabetes and also for impaired glucose tolerance (IGT). Finally, national registers were studied for incident fatal or nonfatal cardiovascular disease until 2006. Cardiovascular risk assessments using three separate risk algorithms were applied on the population.

Results: The participation rate was high with 90% attendance. The conclusion of this cross-sectional baseline analysis was that it is meaningful to check for a secondary cause of hyperlipidemia, hypothyroidism, in women with a cholesterol value above 7.0 mmol/L. After 10 years follow-up women reported significantly more lifestyle changes than men, odds ratio (OR) 1.56 (95% CI: 1.11- 2.18; p= 0.010). Men with a history of smoking or CVD at baseline and women with treated hypertension at baseline made successful lifestyle changes, OR 4.77 (95% CI: 2.18-10.5; p<0.001 and OR 1.84 (95% CI: 1.12-3.02; p= 0.016), respectively, than those without these characteristics. Until 2006, 38 participants had developed diabetes and four subjects IGT out of 664 participants, excluding 10 with diabetes at baseline. A low level of IGFBP-1 at baseline was associated with the development of type 2 diabetes/IGT, hazard ratio (HR) 3.54 (95% CI: 1.18-10.6, p=0.024). This was independent of abdominal obesity or inflammation (CRP). After excluding 16 participants with prevalent CVD at baseline, 71 first fatal or nonfatal CVD events in 689 men and women were registered. Several known risk factors and risk markers were applied on this population.

Those that turned out to be significantly associated with development of incident CVD in univariate Cox´s regression proportional hazard analyses where used in three different risk assessment models: the consultation model, SCORE and the extensive model. A non-laboratory-based risk assessment model, including variables easily obtained during one consultation visit to a general practitioner (GP), predicted cardiovascular events as accurately, HR 2.72; (CI 95% 2.18-3.39, p<0.001), as the established SCORE algorithm, HR 2.73; (CI 95% 2.10-3.55, p<0.001), which requires laboratory testing. Furthermore, adding laboratory measurements covering lipids, inflammation and endothelial dysfunction, did not confer any additional value to the prediction of CVD risk, HR 2.72; (CI 95% 2.19-3.37, p<0.001). The c-statistics for the consultation model (0.794; CI 95% 0.762-0.823) was not significantly different from SCORE (0.767; CI 95% 0.733-0.798, p=0.12) or the extended model (0.806; CI 95% 0.774-0.835, p=0.55).

Conclusions: Our study showed that it is worth searching for hypothyroidism, in women with a cholesterol value above 7 mmol/L. The study identified female gender, previous CVD, hypertension and smoking as predictors of positive lifestyle change during follow-up. A low level of IGFBP-1 predicted future diabetes/IGT in this population as did increased waist and CRP. Finally, data on nonlaboratory risk factors obtained during one GP visit predicted future cardiovascular risk as accurately as SCORE or a laboratory-based risk algorithm.

sted, utgiver, år, opplag, sider
Linköping: Linköping University Electronic Press, 2009. s. 70
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1110
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-17692 (URN)978-91-7393-673-6 (ISBN)
Disputas
2009-04-29, Aulan, Hälsans Hus (ingång 16), Campus US, Linköpings Universitet, Linköping, 13:00 (svensk)
Opponent
Veileder
Tilgjengelig fra: 2009-04-14 Laget: 2009-04-14 Sist oppdatert: 2009-08-21bibliografisk kontrollert

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