Table 1.
Clinicopathological characteristics of patients
| Characteristics | N of patients | Percent |
|---|---|---|
| Histology | ||
| IDL | 1278 | 85.5 |
| ILC | 184 | 12.3 |
| Other | 33 | 2.2 |
| Grading | ||
| G1 | 129 | 8.6 |
| G2 | 827 | 55.4 |
| G3 | 490 | 32.8 |
| Unk | 49 | 3.2 |
| ER | ||
| Pos | 1297 | 86.7 |
| Neg | 147 | 9.8 |
| Unk | 51 | 3.4 |
| PgR | ||
| Pos | 1174 | 78.5 |
| Neg | 268 | 17.9 |
| Unk | 53 | 3.5 |
| HER2 | ||
| Pos | 147 | 9.8 |
| Neg | 927 | 62.0 |
| Unk | 421 | 28.2 |
| Ki67 | ||
| Low | 876 | 58.6 |
| High | 515 | 34.4 |
| Unk | 104 | 7.0 |
| T | ||
| ≤ 12 | 398 | 26.6 |
| ≥ 13–18 | 364 | 24.3 |
| ≥ 19–25 | 400 | 26.8 |
| > 25 | 333 | 22.3 |
| Type | ||
| Multiple | 364 | 24.3 |
| Single | 1131 | 75.7 |
| Molecular subtype | ||
| Luminal A | 452 | 30.2 |
| Luminal B | 628 | 42.0 |
| HER2-like | 50 | 3.3 |
| Triple Negative | 58 | 3.9 |
| Unk | 307 | 20.5 |