Figure 2.

Risk of incident ischemic stroke according to family history of stroke and smoking status. Family history refers to family history of stroke. Model was stratified by age and study area and adjusted for level of education; marital status; household income; alcohol consumption; physical activity; intake frequencies of red meat, fresh fruits, and vegetables; menopause status (only for women); body mass index; prevalent hypertension; prevalent diabetes. Horizontal lines represent 95% confidence intervals (CIs). HR, hazard ratio; PY, person-year.