Table 1.
Clinical characteristics of study population: age at diagnosis, at menarche, at first pregnancy, and at first use of oral contraceptive.
| Mean age (years) | BRCA mutation carriers | Noncarriers | ||
|---|---|---|---|---|
| BRCA1 | BRCA | BRCA2 | ||
| At diagnosis | 37.75 | 34.63 | 31.50 | 37.06 |
|
| ||||
| At menarche | 15.00 ≤12: 00% 13-14: 25% 15-16: 75% |
13.63 ≤12: 14.2% 13-14: 21.3% 15-16: 21.4% |
12.25 ≤12: 50% 13-14: 50% 15-16: 00% |
14.13 ≤12: 15.7% 13-14: 40.6% 15-16: 40.7% >16: 03.1% |
|
| ||||
| At first pregnancy | 22.25 | 24.00 | 26.33 | 26.50 |
|
| ||||
| At first use of oral contraceptive | 26.00 | 26.29 | 26.66 | 26.15 |