Table 1.
Pretreatment characteristics for all eligible patients (n = 52)
| Characteristic | Finding | |
|---|---|---|
| Age | ||
| Median | 61 | |
| Range | 38–89 | |
| Tumor dimension (cm) | ||
| Median | 0.9 | |
| Range | 0.1–2.6 | |
| n | % | |
| Tumor dimension | ||
| <1 cm | 24 | 46 |
| Between 1 cm and 2 cm | 19 | 37 |
| ≥2 cm | 3 | 6 |
| Missing | 6 | 12 |
| Histology | ||
| Invasive ductal | 45 | 87 |
| Colloid | 2 | 4 |
| Tubular | 5 | 10 |
| Stage | ||
| I (T1, N0–1, M0) | 49 | 94 |
| II (T2, N0–1, M0) | 3 | 6 |
| Nodes | ||
| N0 | 48 | 92 |
| N+ | 4 | 8 |
| Menopausal status | ||
| Premenopause | 7 | 7 |
| Postmenopause | 34 | 34 |
| Surgically menopausal | 11 | 11 |
| Location of tumor | ||
| Upper outer | 22 | 42 |
| Upper inner | 9 | 17 |
| Lower outer | 2 | 4 |
| Lower inner | 6 | 12 |
| Upper central | 9 | 17 |
| Lower central | 1 | 2 |
| Subareolar | 3 | 6 |
| Final surgical margins | ||
| Negative | 49 | 94 |
| Positive margin, negative at reexcision | 3 | 6 |
| Chemotherapy | ||
| None | 43 | 83 |
| Yes, before radiotherapy | 5 | 10 |
| Yes, after radiotherapy | 3 | 6 |
| Unknown | 1 | 2 |
| Hormonal therapy | ||
| None | 37 | 71 |
| Yes | 15 | 29 |