The predictive value of serum non-high-density lipoprotein cholesterol (non-HDL-C) levels for the incidence of ischemic stroke and its subtypes has not yet been established. The present cohort study investigated their relationships in a Japanese population. The first incidence of ischemic stroke and its subtypes was documented as the primary outcome. A total of 249 ischemic stroke patients (men/women = 145/104) were identified during a follow-up period of 10.7 years among 10 760 community-dwelling subjects (men/women = 4212/6548). Cox proportional hazard model analyses revealed that when compared with the lowest tertile of non-HDL-C, multivariate-adjusted hazard ratios for the highest tertile were 0.55 (95% confidence interval = 0.32-0.95, P = .03) on ischemic stroke and 0.29 (95% confidence interval = 0.08-1.05, P = .06) on cardioembolic infarction in women. Men did not show such significant relationships. Low serum non-HDL-C levels may be a predictive marker associated with an increase in the incidence of ischemic stroke and possibly of cardioembolic infarction in Japanese women.
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