Patient and Tumor Characteristics
| Characteristic… | Patients with available data (n) | Result | |
| For patients | |||
| Age at diagnosis (y) | 138 | 58 ± 12 | |
| Body mass index (kg/m2) | 130 | 25 ±5 | |
| Prior history of cancer (n) | 137 | 13 (9.5) | |
| Familial history of BC (n) | 138 | 47 (34) | |
| For tumors | |||
| Final size of tumor on histology (mm) | 138 | 14.3 (8.7) | |
| Histology subtypes (n) | 138 | ||
| Invasive ductal carcinoma | 83 (60) | ||
| Invasive lobular carcinoma | 19 (14) | ||
| Intra ductal carcinoma | 25 (18) | ||
| Others | 11 (8) | ||
| Scarff-Bloom-Richardson grade (n) | 116 | ||
| I | 54 (47) | ||
| II | 50 (43) | ||
| III | 12 (10) | ||
| High Ki67 (>30%) (n) | 115 | 15 (13) | |
| Positive progesterone receptors (>10%) (n) | 117 | 83 (71) | |
| Positive estrogens receptors (>10%) (n) | 118 | 105 (89) | |
| Cerb2 overexpression (n) | 117 | 10 (8.5) | |
| Type of surgery (n) | |||
| Lumpectomy (before SNB) | 138 | 126 (91) | |
| Immediate mastectomy | 138 | 12 (9) | |
| Axillary LN dissection | 138 | 14 (10) |
Data in parentheses are percentages.