Table 1 Association of reproductive features between pre and postmenopausal breast cancer.
Variable | Subcategory (N = 446) | Premenopausal group (N = 162) n (%) | Postmenopausal group (N = 284) n (%) | P value |
|---|---|---|---|---|
Age at Menarche (years) | < 14 (n = 193) | 66 (45.2) | 127 (48.7) | 0.503 |
≥ 14 (n = 214) | 80 (54.8) | 134 (51.3) | ||
Age at FCB (years) | < 23 (n = 169) | 55 (42.6) | 114 (48.1) | 0.316 |
≥ 23 (n = 197) | 74 (57.4) | 123 (51.9) | ||
Age at LCB (years) | < 30 (n = 138) | 53 (56.4) | 85 (42.7) | 0.029 |
≥ 30 (n = 155) | 41 (43.6) | 114 (57.3) | ||
Parity | < 2 (n = 54) | 29 (21.1) | 25 (10) | 0.003 |
≥ 2 (n = 330) | 108 (78.9) | 222 (90) |
