Abstract
We aimed to investigate the relationship between high-density lipoprotein cholesterol (HDL-C) concentration and the incident stroke subtypes. We enrolled 11 027 participants between the ages of 18 and 90 years without a history of stroke in 12 Japanese communities. Cox's regression models were used for stroke subtypes, adjusted for traditional risk factors, according to the categories based on HDL-C concentrations: 1.04 to 1.55 mmol/L, ≥1.56 mmol/L, and <1.03 mmol/L (as the reference). During a mean follow-up of 10.7 years, 412 stroke events had occurred. However, HDL-C was not significantly associated with the incidence of cerebral infarction and subarachnoid hemorrhage. High HDL-C concentration was associated with a decreased incidence of intracerebral hemorrhage in women (hazard ratio = 0.23; 95% confidence interval = 0.06-0.89), but not in men (hazard ratio = 0.73; 95% confidence interval = 0.27-1.97). Therefore, high HDL-C concentration might have a protective effect on the incidence of intracerebral hemorrhage, particularly in women.
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