Table 1.
Distribution of patients with breast cancer with regard to different clinical criteria
| Pathological characteristic | Status | Frequency n (%) |
| Side | Left | 29 (52) |
| Right | 26 (48) | |
| ER | Positive | 37 (68) |
| Negative | 18 (32) | |
| PR | Positive | 34 (62) |
| Negative | 21 (38) | |
| HER-2 | Positive | 37 (68) |
| Negative | 18 (32) | |
| Necrosis | Positive | 25 (45) |
| Negative | 30 (55) | |
| Calcification | Positive | 37 (67) |
| Negative | 18 (33) | |
| Lymphatic invasion | Positive | 24 (43) |
| Negative | 31 (57) | |
| Vascular invasion | Positive | 11 (20) |
| Negative | 44 (80) | |
| Perineural invasion | Positive | 11 (20) |
| Negative | 44 (80) | |
| Grade | Low | 47 (86) |
| High | 8 (14) | |
| Stage | I | 18 (33) |
| II | 26 (48) | |
| III | 9 (16) | |
| IV | 2 (3) | |
| Metastasis | Positive | 2 (97) |
| Negative | 53 (3) |