Table 3.
Immunohistochemical analyses and histological grade
| Variables | No (%) |
|---|---|
| ER | |
| Positive | 169 (88) |
| Negative | 23 (12) |
| PgR | |
| Positive | 97 (51) |
| Negative | 95 (50) |
| ER/PgR | |
| ER and/or PgR positive | 177 (92) |
| ER and PgR negative | 15 (8) |
| HER2 | |
| 0 | 153 (80) |
| 1+ | 28 (15) |
| 2+ | 7 (4) |
| 3+ | 4 (2) |
| Ki67 | |
| Low (0-10%) | 115 (60) |
| Intermediate (11-30%) | 62 (32) |
| High (>30%) | 15 (8) |
| Histological grade | |
| 1 | 28 (16) |
| 2 | 133 (76) |
| 3 | 14 (8) |
| Unknown | 17 |
| Tubule formation | |
| 1 | 0 (0) |
| 2 | 13 (7) |
| 3 | 162 (93) |
| Pleomorphism | |
| 1 | 20 (11) |
| 2 | 112 (64) |
| 3 | 43 (25) |
| Mitotic score | |
| 1 | 155 (89) |
| 2 | 10 (6) |
| 3 | 10 (6) |