Table 2.
Treatment characteristics
| Characteristic | N = 66 |
|---|---|
| Axillary surgery | |
| Sentinel node biopsy alone | 24 (36%) |
| Axillary lymph node dissection | 22 (33%) |
| Axillary lymph node dissection alone | 6 |
| Sentinel biopsy that converted to axillary dissection | 16 |
| None | 20 (30%) |
| Chemotherapy | |
| No | 35 (53%) |
| Yes | |
| Neoadjuvant | 19 (29%) |
| Adjuvant | 12 (18%) |
| Endocrine therapy | |
| No | 19 (29%) |
| Yes | 47 (71%) |
| Oncoplastic reduction mammoplasty at time of partial mastectomy | |
| No | 54 (82%) |
| Yes | 12 (18%) |
| Drains placed at time of partial mastectomy | |
| No | 52 (79%) |
| Yes | 14 (21%) |
| Antibiotics given before radiation therapy | |
| No | 57 (86%) |
| Yes | 9 (14%) |
| Radiotherapy | |
| Maximum dose (%) | |
| Mean (range) | 107.8 (105.1‐115.6) |
| Breast volume receiving >107% of whole breast dose (cm3) | |
| Mean (range) | 86.9 (0‐1697.9) |
| ≥2 cm3 of breast tissue receiving >107% of whole breast dose | |
| No | 40 (61%) |
| Yes | 26 (39%) |
| Supraclavicular Nodal Irradiation | |
| No | 49 (74%) |
| Yes | 17 (26%) |
| Intent to treat level 1 of axilla | |
| No | 57 (86%) |
| Yes | 9 (14%) |
| Intent to Treat Internal Mammary Lymph Nodes | |
| No | 60 (91%) |
| Yes | 6 (9%) |
| Boost | |
| Electron | 41 (62%) |
| Photon | 17 (26%) |
| Boost dose, Gy | |
| 10 | 54 (82%) |
| 14 | 11 (17%) |
| 16 | 1 (1%) |