Table 1. Patient and Tumor Characteristics.
| Characteristic | No. (%) |
|---|---|
| All patients | 212 (100) |
| Age, median (range), y | 52 (22-77) |
| cT statusa | |
| 0 | 2 (0.9) |
| 1 | 26 (12.3) |
| 2 | 128 (60.4) |
| 3 | 49 (23.1) |
| 4 | 7 (3.3) |
| Multifocality | |
| No | 158 (74.5) |
| Yes | 54 (25.5) |
| cN status | |
| 1 | 154 (72.6) |
| 2 | 44 (20.8) |
| 3b | 14 (6.6) |
| Stage | |
| II | 155 (73.1) |
| III | 157 (26.9) |
| Subtype | |
| HR+/ERBB2−b | 102 (48.1) |
| HR+/ERBB2+ | 43 (20.3) |
| HR−/ERBB2+ | 22 (10.4) |
| Triple negative | 45 (21.2) |
| Type of breast surgery | |
| Lumpectomy | 119 (56.1) |
| Mastectomy | 93 (43.9) |
Abbreviations: cN, clinical node status; cT, clinical tumor status; HR, hormone receptor.
a
cT status: 0, no evidence of primary tumor; 1, tumor is less than or equal to 2 cm in diameter; 2, tumor is greater than 2 cm but less than 5 cm in diameter; 3, tumor is greater than 5 cm in diameter; 4, tumor has extended to the chest wall or skin.
b
Formerly HER2 or HER2/neu.