Table 1 Patient, tumor, and treatment characteristics
| Â | Â | No (%) |
|---|---|---|
Age | Â | Â |
| Â | Range | 36-78 |
| Â | Median | 52 |
Tumor size (cm) | Â | Â |
| Â | Range | 0.4 - 4.0 |
| Â | Median | 1.5 |
T classification | Â | Â |
| Â | Tis | 5 (10.4) |
| Â | T1 | 28 (58.3) |
| Â | T2 | 15 (31.3) |
N classification | Â | Â |
| Â | N0 | 44 (91.7) |
| Â | N1 | 4 (8.3) |
Histological subtype | Â | Â |
| Â | Invasive ductal | 36 (75.0) |
| Â | Invasive medullary | 6 (12.5) |
| Â | Ductal carcinoma in situ | 5 (10.4) |
| Â | Invasive tubular | 1 (2.1) |
Hormone receptor | Â | Â |
| Â | ER + and PR + | 34 (70.8) |
| Â | ER + and PR - | 3 (6.3) |
| Â | ER - and PR - | 11 (22.9) |
Resection margin | Â | Â |
|  | Clear (≥ 0.2 cm) | 42 (87.5) |
| Â | Close (> 0, < 0.2 cm) | 6 (12.5) |
Radiation therapy | Â | Â |
| Â | 34 Gy (3.4 Gy/fraction) | 40 (83.3) |
| Â | 30 Gy (3.0 Gy/fraction) | 8 (16.7) |
Systemic therapy | Â | Â |
| Â | Chemotherapy + Hormonal therapy | 24 (50.0) |
| Â | Hormonal therapy | 15 (31.3) |
| Â | Chemotherapy | 5 (10.4) |
| Â | None | 4 (8.3) |