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Patients’ characteristics
| Characteristics | Number of patients | % |
|---|---|---|
| Age (y) | ||
| < 40 | 17 | 22.7 |
| 40~60 | 51 | 68.0 |
| ≥ 60 | 7 | 9.3 |
| T Stage | ||
| T1 | 56 | 74.7 |
| T2 | 19 | 25.3 |
| N Stage | ||
| N0 | 57 | 76.0 |
| N1 | 18 | 24.0 |
| Histological type | ||
| Invasive ductal carcinoma | 68 | 90.7 |
| Others | 7 | 9.3 |
| Grade | ||
| I | 10 | 13.3 |
| II | 37 | 49.4 |
| III | 18 | 24.0 |
| Unknown | 10 | 13.3 |
| Markers | ||
| ER+ | 60 | 86.7 |
| PR+ | 56 | 74.7 |
| HER2+ | 11 | 14.7 |
| Triple Negative | 5 | 6.7 |
ER, estrogen receptor; PR, progesterone receptor; HER2, human epidermal growth factor receptor-2.
