Table 1.
Baseline characteristics of breast cancer patients and controls.
| Characteristics | Cases (n = 49) | Controls (n = 49) | P |
|---|---|---|---|
| Age (years) | 55.6 ± 9.58 | 54.2 ± 8.77 | 0.452 |
| BMI (kg/m2) | 26.4 ± 5.47 | 27.3 ± 5.59 | 0.423 |
| Age of first pregnancy (years) | 20.5 ± 2.14 | 21.0 ± 2.11 | 0.247 |
| Menopause status | 0.655 | ||
| Premenopause | 13 (26.5) | 15 (30.6) | |
| Postmenopause | 36 (73.5) | 34 (69.4) | |
| Use of estrogens | 0.372 | ||
| Yes | 8 (16.3) | 5 (10.2) | |
| No | 41 (83.7) | 44 (89.8) | |
| Family history of breast cancer | 0.092 | ||
| Yes | 5 (10.2) | 1 (2.0) | |
| No | 44 (89.8) | 48 (98.0) |
Abbreviation: BMI: body mass index.