| Characteristic | Prevalence ratio (95% CI) | |||
|---|---|---|---|---|
| Men n = 12 748 | Women n = 28 526 | |||
| Residence* | ||||
| Urban | 1.00 (reference) | 1.00 (reference) | ||
| Rural | 0.90 | (0.87–0.94) | 0.92 | (0.90–0.95) |
| BMI† | ||||
| Normal (18–24) | 1.00 (reference) | 1.00 (reference) | ||
| Underweight (< 18) | 0.91 | (0.83–1.00) | 0.96 | (0.91–1.03) |
| Overweight (25–29) | 0.95 | (0.90–1.00) | 1.06 | (1.03–1.10) |
| Obese (≥ 30) | 1.03 | (0.98–1.08) | 1.17 | (1.13–1.20) |
| Smoking‡ | ||||
| Never | 1.00 (reference) | 1.00 (reference) | ||
| Current | 1.54 | (1.46–1.64) | 1.60 | (1.54–1.66) |
| Past | 1.17 | (1.10–1.24) | 1.32 | (1.27–1.38) |
Note: BMI = body mass index, CI = confidence interval. *Data on residence missing for 10 650 patients (4977 men, 5673 women). †Data on BMI missing for 117 374 patients (53 917 men, 63 457 women). ‡Data on smoking status missing for 201 139 patients (89 686 men, 111 453 women).