Abstract
BackgroundThe Lapinlahti 2005–2010 study was carried out to explore cardiovascular disease risk factors and changes in lifestyle in Lapinlahti residents in eastern Finland. Our aim was to analyse factors influencing the level of cholesterol in the community.MethodsIn 2005, 480 subjects aged 30–65 years underwent a complete health survey (baseline study) that consisted of a structured questionnaire and a health examination. The follow-up was carried out five years later in 2010. The present study population included 326 individuals who did not use lipid-lowering medication at the baseline. A trained research nurse measured weight, height, waist circumference and blood pressure at the baseline and follow-up. Respectively, lifestyle factors (nutrition, exercise, smoking and alcohol use) were examined with a structured questionnaire. Each lifestyle item was valued as −1, 0 or 1, depending on how closely it fitted to the recommendations. Cholesterol level analyses at the baseline and follow-up were performed according to the protocol of the Kuopio University Hospital’s medical laboratory. Based on their baseline cholesterol levels, the participants were divided into tertiles. The age- and sex-adjusted linear trend between the tertiles was tested.ResultsThe change in cholesterol level was associated with lipid-lowering medication (P < 0.001). Lifestyle improvement was associated with the cholesterol level change but did not reach statistical significance (P = 0.061), although the interaction of lipid-lowering medication and lifestyle change was associated with the change in cholesterol level (P = 0.018). In multivariate analysis, a favourable change in fat consumption (P = 0.007) and lipid-lowering medication (P < 0.001) were associated with decreasing cholesterol levels.ConclusionsAt the population level, dyslipidaemia is one of the most easily modifiable risk factors of CHD. Lipid-lowering medication may have the most significant impact on cholesterol level in communities with primary health care with good coverage. On the other hand, the potential of health-promoting and population-based prevention strategies may be underused.
Highlights
The Lapinlahti 2005–2010 study was carried out to explore cardiovascular disease risk factors and changes in lifestyle in Lapinlahti residents in eastern Finland
Employment, living alone, Becks depression inventory (BDI) score, smoking, alcohol consumption and physical activity did not show a linear relationship with the serum cholesterol tertiles
Lifestyle improvement was associated with the cholesterol level change, but did not quite reach statistical significance (P = 0.061)
Summary
The Lapinlahti 2005–2010 study was carried out to explore cardiovascular disease risk factors and changes in lifestyle in Lapinlahti residents in eastern Finland. Cardiovascular diseases, of which coronary heart disease (CHD) is the most common, are the major cause of death in most European countries [1]. Serum cholesterol levels are linearly related to CHD mortality. There is a linear relationship between the increase in CHD mortality and an increase in cholesterol levels [2]. Serum cholesterol levels declined markedly in Finland from 1972 to 2007, as did CHD mortality among the middle-aged [9]. According to the FINRISKI 2012 study, this decline in serum cholesterol levels has levelled off and had increased recently (1.7% in men and 3.1% in women during 2007–2012) [10]
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