Table 1.
Select characteristics of the subsample of 363 women (≤ 40 years of age who were not currently on oral contraceptives), SWHS, 1996–1998.
| Characteristic | No. (%) |
|---|---|
| Total | 363 (100) |
| Age at interview (years) | |
| 20–28 | 112 (30.9) |
| 29–33 | 118 (32.5) |
| 34–40 | 133 (36.6) |
| Education | |
| ≤ Required | 93 (25.6) |
| Intermediate/professional | 147 (40.5) |
| ≥ High school | 123 (33.9) |
| Married | |
| Never | 119 (32.8) |
| Ever | 244 (67.2) |
| Current BMI | |
| Underweight | 32 (8.8) |
| Normal | 268 (73.8) |
| Overweight | 46 (12.7) |
| Obese | 17 (4.7) |
| Oral contraceptive use | |
| Never | 152 (41.9) |
| Ever | 211 (58.1) |
| Cigarette smoking | |
| Never | 223 (61.4) |
| Former | 53 (14.6) |
| Current | 87 (24.0) |
| Parity | |
| 0 | 171 (47.1) |
| 1 | 88 (24.2) |
| ≥ 2 | 104 (28.7) |
| Lactation history (months) | |
| 0 | 194 (53.4) |
| 1–6 | 105 (28.9) |
| > 6 | 64 (17.6) |
| Menarche before explosion | |
| No | 195 (53.7) |
| Yes | 168 (46.3) |