Table 1.
Patient characteristics at baseline (n = 250)
| Characteristic | n | % |
|---|---|---|
| Histology | ||
| In situ carcinoma | 24 | 9.6 |
| Invasive carcinoma | 223 | 89.2 |
| Microinvasive carcinoma | 2 | 0.8 |
| Other | 1 | 0.4 |
| Neoadjuvant CHT | ||
| Yes | 67 | 26.8 |
| No | 183 | 73.2 |
| Adjuvant CHT | ||
| Yes | 32 | 12.8 |
| No | 218 | 87.2 |
| Type of surgery | ||
| Lumpectomy | 224 | 89.6 |
| Quadrantectomy | 24 | 9.6 |
| Other | 2 | 0.8 |
| Type of incision | ||
| Radial | 46 | 18.4 |
| Circular | 85 | 34.0 |
| Periareolar | 104 | 41.6 |
| Fishmouth-shaped | 13 | 5.2 |
| Other | 2 | 0.8 |
| Axillary surgery | ||
| SLNE only | 176 | 70.4 |
| ALNE only | 46 | 18.4 |
| SLNE + ALNE | 5 | 2.0 |
| None | 23 | 9.2 |
| (y)pN | ||
| N0 | 167 | 66.8 |
| N+ | 60 | 23.9 |
| No axillary surgery performed | 23 | 9.2 |
| (y)pT | ||
| T0 | 24 | 9.6 |
| Tis/DCIS | 31 | 12.4 |
| T1 | 137 | 54.6 |
| T2 | 55 | 22.0 |
| T3 | 1 | 0.4 |
| T4 | 1 | 0.4 |
| Missing data | 1 | 0.4 |
CHT chemotherapy, SLNE sentinel lymphadenectomy, ALNE axillary lymphadenectomy, DCIS ductal carcinoma in situ