Table 1. Patients characteristics.
| Patients (N = 39) | ||
|---|---|---|
| N | % | |
| Age | ||
| <50 years | 15 | 38.5 |
| ≥50 years | 24 | 61.5 |
| T Stage | ||
| T1 | 9 | 23.1 |
| T2 | 27 | 69.2 |
| T3 | 1 | 2.6 |
| T4 | 2 | 5.1 |
| N stage | ||
| N0 | 8 | 20.5 |
| N1 | 13 | 33.3 |
| N2 | 11 | 28.2 |
| N3 | 7 | 17.9 |
| Unknown | ||
| Histologic grade | ||
| Grade I | 2 | 5.1 |
| Grade II | 16 | 41.0 |
| Grade III | 18 | 46.2 |
| Unknown | 3 | 7.7 |
| Hormone receptor | ||
| ER+ and/or PR+ | 27 | 69.2 |
| ER- and PR- | 12 | 30.8 |
| HER2 status | ||
| Negative on IHC | 17 | 43.6 |
| 1+ on IHC | 17 | 43.6 |
| 2+ on IHC and negative on FISH | 5 | 12.8 |
ER: estrogen receptor, PR: progesterone receptor, HER2: human epidermal growth factor receptor-2, IHC: immunohistochemistry, FISH: fluorescence in situ hybridization