Table 4.
Effect of Radiation Technique on Disease-Free Survival and Overall Survival in Patients with Triple Negative Breast Cancer
| Treatment Type | IMRT (n=99) | 3D CRT (n=115) | P value |
|---|---|---|---|
| Age at diagnosis (years; mean {SD}) | 61.4 (11.5) | 59.7 (13.0) | 0.316 |
| Proportion receiving 50 Gy to chest/breast | 33/99 | 36/108 | 1.00 |
| Proportion receiving dose to SCF | 33/99 | 37/110 | 1.00 |
| Proportion receiving boost | 82/99 | 80/109 | 0.1319 |
| Disease-free survival (months; mean {SD}) | 83.9 (35.06) | 105.6 (46.71) | 0.818a |
| Overall survival (months; mean {SD}) | 90.6 (27.25) | 106.7 (46.57) | 0.232a |
Note: aLogrank test.
Abbreviations: 3D CRT, 3-dimensional conformal radiotherapy; IMRT, intensity modulated radiotherapy; SCF, Supraclavicular fossa.