Table 1.
Characteristics of participants in Shanghai women's health study who had never smoked
| Characteristic | No (%) |
|---|---|
| Age at baseline: | (n=72 829) |
| 40-45 | 24 060 (33.0) |
| 46-50 | 14 263 (19.6) |
| 51-55 | 9 495 (13.0) |
| 56-60 | 7 364 (10.1) |
| 61-65 | 9 958 (13.7) |
| 66-70 | 7 689 (10.6) |
| Education: | (n=72 820) |
| College or higher | 10 112 (13.9) |
| High school | 20 589 (28.3) |
| Middle school | 27 132 (37.3) |
| Less than middle school | 14 987 (20.6) |
| Family income: | (n=72 813) |
| High | 19 772 (27.2) |
| Middle | 28 407 (39.0) |
| Low | 24 634 (33.8) |
| Marital status: | (n=72 829) |
| Single | 654 (0.9) |
| Married | 64 881 (89.1) |
| Widowed | 5 233 (7.2) |
| Separated | 774 (1.1) |
| Divorced | 1 287 (1.8) |
| Occupation: | (n=72 580) |
| Professional | 21 183 (29.2) |
| Clerical | 15 014 (20.7) |
| Farmer, manual worker | 36 383 (50.1) |
| Ever drank alcohol: | (n=72 829) |
| No | 71 429 (98.1) |
| Yes | 1 400 (1.9) |
| Physical activity during adolescence: | (n=72 829) |
| Little | 15 723 (21.6) |
| Moderate | 37 951 (52.1) |
| Active | 19 155 (26.3) |
| Regular physical activity during past five years: | (n=72 829) |
| No | 47 029 (64.6) |
| Yes | 25 800 (35.4) |
Not all participants answered all questions.