Table 1. Baseline characteristics.
| Characteristic | No. (%) |
|---|---|
| No. of patients | 127 |
| Age (yr)* | 51.6±12.9 |
| Menopausal status | |
| Premenopause | 67 (52.7) |
| Postmenopause | 60 (47.2) |
| Breast tumor size (cm)† | 3.0 (2.0–4.5) |
| Stage at diagnosis | |
| I | 1 (0.8) |
| II | 82 (64.6) |
| III | 42 (33.0) |
| IV | 2 (1.6) |
| Type of surgery | |
| BCS | 83 (65.3) |
| Mastectomy | 44 (34.7) |
| Histologic subtypes | |
| Ductal | 103 (81.1) |
| Lobular | 16 (12.6) |
| Ductolobular | 3 (2.4) |
| Other | 5 (3.9) |
| Histologic grade | |
| 1 | 3 (2.5) |
| 2 | 77 (64.2) |
| 3 | 40 (33.3) |
| Estrogen receptor | |
| Positive | 110 (86.6) |
| Negative | 17 (13.4) |
| Progesterone receptor | |
| Positive | 97 (76.4) |
| Negative | 30 (23.6) |
| HER2 | |
| Positive | 15 (11.8) |
| Negative | 112 (88.2) |
| No. of positive nodes† | 2 (1–4) |
BCS=breast-conserving surgery; HER2=human epidermal growth factor receptor 2.
*Mean±SD; †Median (interquartile range).