Table 1. Characteristics according to cumulative number of insomnia for women.
| Cumulative insomnia symptoms | ||||
| Variable | n | 0 | 1–2 | 3–4 |
| N = 2,144 | N = 1,468 | N = 566 | N = 110 | |
| Age (years) | 2,144 | 49.1 (13.4) | 49.5 (13.6) | 51.6 (13.1) |
| BMI (kg/m2) | 2,142 | 25.5 (3.7) | 25.5 (4.1) | 26.0 (4.4) |
| HADS anxiety score | 2,139 | 3.5 (2.7) | 5.4 (3.4) | 6.7 (3.9) |
| HADS depression score | 2,141 | 2.2 (2.2) | 3.2 (2.8) | 4.5 (3.3) |
| Physical activity index | 1.986 | 3.7 (2.5) | 3.6 (2.5) | 3.3 (3.0) |
| FMD (%) | 2,144 | 5.3 (4.5) | 5.3 (4.4) | 5.1 (4.5) |
| Smoking (%) | ||||
| Never | 1,052 | 53.1 | 43.0 | 48.8 |
| Previous | 581 | 26.3 | 31.5 | 27.4 |
| Current | 483 | 20.6 | 25.6 | 23.8 |
| Marital status (%) | ||||
| Never married | 460 | 21.0 | 23.3 | 18.2 |
| Married | 1,316 | 62.7 | 59.5 | 54.6 |
| Separated/divorced/widowed | 365 | 16.3 | 17.1 | 27.3 |
| Sleep-disordered breathing (%) | ||||
| Never/almost never | 2,042 | 97.5 | 94.5 | 96.6 |
| Sometimes | 63 | 2.3 | 4.6 | 3.0 |
| Several times a week | 8 | 0.1 | 0.9 | 0.4 |
| Snoring (%) | ||||
| Never/almost never | 1,416 | 69.6 | 62.9 | 61.8 |
| Sometimes | 537 | 25.0 | 25.9 | 31.8 |
| Several times a week | 147 | 5.5 | 11.2 | 6.7 |
| Alcohol intake (%) | ||||
| Abstainers | 865 | 50.7 | 52.5 | 48.9 |
| Light drinkers | 652 | 39.7 | 35.3 | 38.6 |
| Moderate drinkers | 139 | 7.8 | 9.5 | 6.8 |
| Heavy drinkers | 37 | 1.7 | 2.7 | 5.7 |
| Education (%) | ||||
| Primary | 277 | 11.7 | 14.0 | 24.8 |
| Secondary | 987 | 45.3 | 47.8 | 49.5 |
| Tertiary | 873 | 43.0 | 38.2 | 25.7 |