C-reactive protein, interleukin-6 and tumor necrosis factor alpha as predictors of incident coronary and cardiovascular events and total mortality. A population-based, prospective study
Abstract
Previous studies have shown an association between serum C-reactive protein (CRP) and cardiovascular disease (CVD) risk. The roles of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNFalpha) are less well established. The aim of the present study was to analyze the associations of CRP, IL-6 and TNFalpha with incident coronary heart disease (CHD) events, CVD events, and total mortality. A random population sample, including men and women aged 25-64 years was examined in Finland in 1992. The sample size was 7,927 and 6,051 (76%) participated. The cohort was followed up until the end of 2001. During the follow-up, 151 incident CHD events, 205 CVD events and 183 deaths from any cause were observed. A stratified random subsample (n=313) was used as the comparison group. After adjustment for conventional CVD risk factors, CRP showed a significant association with CHD risk in men (HR=2.39, 1.08-5.28, comparing fourth quartile to the first quartile). This association remained significant after further adjustment for TNFalpha. TNFalpha also was a significant predictor of CHD among men, but the association was nonlinear (HR=2.21, 1.18-4.14 comparing the three upper quartiles to the first quartile). Further adjustment for CRP did n...Continue Reading
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