Hazard ratios (95% CI) for ischemic stroke according to quintiles of BMI, WC, WHpR, and WHtR.

CI, confidence interval; BMI, body mass index; WC, waist circumference; WHpR, waist-to-hip ratio; WHtR, waist-to-height; −2log L, −2log-likelihood; Q1, the lowest fifth of the data (1–20%); Q2,the second lowest fifth (21–40%); Q3,the middle fifth (41–60%);Q4, the second highest fifth (61–80%); Q5, the highest fifth (81–100%).
*Cut-points of quintiles: BMI (Kg/m2) 22.05, 24.00, 25.71, 27.74; WC (cm) 79.00, 84.00, 89.00, 95.00; WHpR 0.84, 0.88, 0.91, 0.94; WHtR 0.47, 0.50, 0.53, 0.57.
†Model 1 was stratified by hospitals, and adjusted for age and sex.
‡Model 2 was stratified by hospitals, and adjusted for age, sex, average monthly income of each family member, education level, marital status, smoking status, drinking status, and physical activity.
§Model 3 was stratified by hospitals, and adjusted for age, sex, average monthly income of each family member, education level, marital status, smoking status, drinking status, physical activity, history of hypertension, diabetes mellitus, and dyslipidemia.