Table 1.
Patients Characteristics (n = 616).
| Characteristics | Number | Percentage (%) | |
|---|---|---|---|
| Age at diagnosis (years) | Median | 35 | |
| Range | 19–40 | ||
| Hormonal status | ER-positive | 449 | 73.0 |
| PR-positive | 438 | 71.0 | |
| ER and/or PR-positive | 482 | 78.2 | |
| ER and PR-negative | 134 | 22.0 | |
| HER-2 status* | HER2-positive | 180 | 32.9 |
| HER2-negative | 367 | 67.1 | |
| Unknown | 68 | 12.4 | |
| Triple negative* | 69 | 12.6 | |
| Positive family history of breast cancer | 499 | 81.0 | |
*Percentage from 547 with known HER2 status.
ER estrogen receptors, PR progesterone receptors, HER2 human epidermal growth factor receptor-2.