Table I.
Patient characteristics.
| Characteristic | Result |
|---|---|
| Age | |
| Age median (years) | 52.8 |
| Age range (years) | 35–85 |
| Menstrual status | |
| Premenopausal | 53 |
| Postmenopausal | 64 |
| Histology | |
| Ductal | 105 |
| Lobular | 7 |
| Mixed | 5 |
| T-stage | |
| T1 | 12 |
| T2 | 49 |
| T3 | 15 |
| T4 | 42 |
| N-stage | |
| N0 | 18 |
| N1 | 26 |
| N2/N3 | 66 |
| NX | 7 |
| Receptor-based subtype | |
| ER-positive (ER+; HER2-) | 67 |
| Triple-negative (ER-; PR-; HER2-) | 15 |
| HER2+ | 35 |
| Ki67 status | |
| Low (<14%) | 24 |
| Intermediate (14–30%) | 52 |
| High (>30%) | 41 |
ER, estrogen receptor; HER2, human epidermal growth factor receptor; PR, progesterone receptor; Ki67, proliferation marker protein Ki-67.