Table 1.
The standard histopathological parameters
| Tumor classification, n (%) | |
| pT1 | 145 (55%) |
| pT2 | 94 (36%) |
| pT3 | 10 (4%) |
| pT4 | 13 (5%) |
| Nodal classification, n (%) | |
| pN0 | 96 (37%) |
| pN1 | 116 (44%) |
| pN2 | 34 (13%) |
| pN3 | 16 (6%) |
| Histological grade, n (%) | |
| 1 | 22 (8%) |
| 2 | 113 (43%) |
| 3 | 127 (49%) |
| Tumor histology, n (%) | |
| Ductal | 214 (82%) |
| Lobular | 26 (10%) |
| Mucinous | 4 (1%) |
| Other | 18 (7%) |
| HER2 status, n (%) | |
| Positive | 129 (49%) |
| Negative | 133 (51%) |
| ER status, n (%) | |
| Positive | 188 (72%) |
| Negative | 74 (28%) |
| PR status, n (%) | |
| Positive | 163 (62%) |
| Negative | 99 (38%) |
ER estrogen receptor, PR progesterone receptor