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HER2‐positive tumors – patient characteristics.
| Characteristic | N (%) |
|---|---|
| Menopausal status | |
| Premenopausal | 34 (44.7) |
| Postmenopausal | 42 (55.3) |
| Race/Ethnicity | |
| White | 65 (85.5) |
| Asian | 1 (1.3) |
| Hispanic | 7 (9.2) |
| African American | 3 (4) |
| ER | |
| Negative | 39 (51.3) |
| Positive | 37 (48.7) |
| PR | |
| Negative | 40 (52.6) |
| Positive | 36 (47.4) |
| Response to trastuzumab‐based chemotherapy | |
| Stable disease | 29 (38.2) |
| Partial response | 21 (27.6) |
| Progressive disease | 26 (34.2) |
