Table 2.
Independent relative risk (RR) of incident stroke for individual health behaviours adjusted for age, sex, body mass index, systolic blood pressure, cholesterol concentration, aspirin use, history of diabetes mellitus, and social class in men and women aged 40-79 without known stroke and myocardial infarction at the baseline in EPIC-Norfolk 1993-2007, Cox regression model
| RR (95% CI) | P value | |
|---|---|---|
| Men and women | ||
| Current smoker v non-current smoker | 1.69 (1.34 to 2.13) | <0.001 |
| Physically inactive v not inactive | 1.29 (1.09 to 1.52) | 0.003 |
| Alcohol consumption <1 or >14 v 1-14 units/week | 1.28 (1.09 to 1.50) | 0.003 |
| Vitamin C ≥50 v <50 µmol/l | 1.39 (1.17 to 1.64) | <0.001 |
| Men | ||
| Current smoker v non-current smoker | 1.50 (1.07 to 2.09) | 0.018 |
| Physically inactive v not inactive | 1.20 (0.94 to 1.52) | 0.15 |
| Alcohol consumption <1 or >14 v 1-14 units/week | 1.20 (0.96 to 1.52) | 0.12 |
| Vitamin C ≥50 v <50 µmol/l | 1.22 (0.95 to 1.55) | 0.11 |
| Women | ||
| Current smoker v non-current smoker | 1.93 (1.40 to 2.67) | <0.001 |
| Physically inactive v not inactive | 1.37 (1.08 to 1.73) | 0.009 |
| Alcohol consumption <1 or >14 v 1-14 units/week | 1.36 (1.08 to 1.71) | 0.008 |
| Vitamin C ≥50 v <50 µmol/l | 1.56 (1.24 to 1.96) | <0.001 |