Supplemental Table 1. Multivariate-adjusted hazard ratios for stroke incidence among participants aged 60–74 years and ≥ 75 years by using the standard Cox regression model.
| Variables | 60–74 years (n = 1502) HR (95% CI) |
≥ 75 years (n = 563) HR (95% CI) |
P value for interaction |
|---|---|---|---|
| Age (per 1 standard deviation) | 1.64 (1.23–2.18) | 1.70 (1.25–2.31) | 0.81 |
| Men | 1.29 (0.88–1.91) | 1.36 (0.89–2.08) | 0.57 |
| Hypertension | 2.14 (1.54–2.97) | 1.58 (1.07–2.33) | 0.15 |
| Diabetes mellitus | 1.50 (1.01–2.22) | 0.64 (0.32–1.27) | 0.023 |
| Heart disease | 1.45 (0.91–2.30) | 1.02 (0.60–1.73) | 0.21 |
| Current drinker | 1.39 (0.93–2.06) | 0.88 (0.54.1–42) | 0.13 |
| Junior high school | 1.86 (1.09–3.18) | 1.43 (0.66–3.09) | 0.59 |
Hazard ratios (HRs) given with 95% confidence intervals (CIs) were adjusted for all other variables shown in the table. Age per 1 standard deviation corresponded to 7.6 years. P denotes the significance of interaction between age categories (60–74 years and ≥ 75 years) and each variable.