Age-standardised distribution of characteristics among women participating in the Nurses' Health Study by menopausal status
| 1980 | 1996 | |||||
|---|---|---|---|---|---|---|
| Premenopausal | Postmenopausal | Premenopausal | Postmenopausal | |||
| (n=56 878) | Natural (n=24 624) | Surgical (n=11 033) | (n=5395) | Natural (n=46 613) | Surgical (n=12 958) | |
| Age, mean ± SD (years) | 42.0±5.3 | 54.1±3.5 | 50.4±5.7 | 51.9±2.2 | 63.0±6.8 | 62.5±6.9 |
| Body mass index (kg/m2) | 24.5 | 24.5 | 24.8 | 26.3 | 26.3 | 26.9 |
| Diuretic use (%) | 9.0 | 8.6 | 11.6 | 3.7 | 9.3 | 13.1 |
| History of hypertension (%) | 15.2 | 17.4 | 21.2 | 43.5 | 37.9 | 46.8 |
| Alcohol intake (g/day) | 6.3 | 6.2 | 5.7 | 5.4 | 5.3 | 4.4 |
| Total meat intake (servings/day) | 1.2 | 1.2 | 1.2 | 0.7 | 0.7 | 0.7 |
| Seafood intake (servings/day) | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 |
| Total dairy food intake (servings/day) | 1.9 | 1.9 | 1.9 | 1.3 | 1.6 | 1.6 |
| Total coffee intake (servings/day) | 2.2 | 2.4 | 2.1 | 2.0 | 2.1 | 1.9 |
| Total fructose intake (g/day) | 21.3 | 21.8 | 22.5 | 22.3 | 21.1 | 21.4 |
| Total vitamin C intake (mg/day) | 299 | 292 | 326 | 476 | 366 | 374 |
| Smoking status (%) | ||||||
| Current | 24.8 | 37.9 | 29.7 | 6.1 | 12.9 | 10.3 |
| Former | 27.9 | 24.6 | 25.5 | 49.1 | 43.3 | 43.1 |
| Never | 46.9 | 35.5 | 41.5 | 44.8 | 43.4 | 46.1 |
| Age at menopause, mean ± SD (years) | Not applicable | 48.8±4.0 | 42.2±6.5 | Not applicable | 50.0±3.7 | 44.3±6.3 |