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Prior treatments.
| N = 459 | |
|---|---|
| Prior surgery, n (%) | 342 (76.5) |
| Missing | 12 |
| Prior radiation therapy, n (%) | 370 (81.7) |
| Missing | 6 |
| Number of metastatic treatment lines, n (%) | |
| 2 | 97 (21.1) |
| 3 | 90 (19.6) |
| 4 | 65 (14.2) |
| 5 | 67 (14.6) |
| ≥ 6 | 140 (30.5) |
| Median (range) | 4 (2–22) |
| Prior treatment for metastatic disease, n (%) | |
| Trastuzumab | 458 (99.8) |
| Trastuzumab emtansine | 435 (94.8) |
| Pertuzumab | 364 (79.3) |
