| Differentiation | ||
| Well | Reference |
|
| Moderately | 2.33 (1.43 - 3.78) | 0.001 |
| Poorly | 4.32 (2.65 - 7.06) | 0.000 |
| Phenotype | ||
| Luminal A | Reference |
|
| Luminal B | 1.32 (0.77 - 2.25) | 0.311 |
| HER2 positive | 2.45 (1.61 - 3.74) | 0.000 |
| Triple negative | 2.93 (2.13 - 4.04) | 0.000 |
| Type of surgery | ||
| No surgery | Reference |
|
| Conservative | 0.04 (0.03 - 0.05) | 0.000 |
| Radical | 0.08 (0.06 - 0.10) | 0.000 |