Table 1.
Clinical features of subjects in the case and control groups
| Features | Case (n=143) |
Control (n=161) |
P-value |
|---|---|---|---|
| Age, mean ± SD, years | 49.4±8.6 | 50.1±8.2 | |
| <50, n | 69 | 83 | 0.646 |
| ≥50, n | 74 | 78 | |
| Age at menarche, mean ± SD | 13.6±2.0 | 13.8±1.7 | 0.347 |
| Age at menopause, mean ± SD | 49.9±2.9 | 50.3±2.1 | 0.166 |
| Pregnancy | |||
| No, n (%) | 10 (7.0) | 13 (8.1) | 0.829 |
| Yes, n (%) | 133 (93.0) | 148 (91.9) | |
| Menopausal status | |||
| Premenopausal, n (%) | 52 (36.3) | 68 (42.2) | 0.347 |
| Postmenopausal, n (%) | 91 (63.7) | 93 (57.8) | |
| Body mass index, kg/m2 | |||
| <24, n | 98 | 103 | 0.466 |
| ≥24, n | 45 | 58 | |
| Family history of cancer | |||
| No, n | 128 | 141 | 0.719 |
| Yes, n | 15 | 20 | |
Abbreviation: SD, standard deviation.