Table 4 Effect of radiation on local recurrences and breast cancer mortality in node-negative and node-positive disease
| Â | Mastectomy + axillary clearance + radiation | Mastectomy + axillary clearance | Radiation gain (%) |
|---|---|---|---|
Radiation after mastectomy and axillary clearance | |||
   Isolated local recurrence (%) |  |  |  |
Node-negative | 3.1 | 7.8 | 4.9 |
Node-positive | 7.8 | 29.2 | 17.1 |
   Breast cancer mortality (%) |  |  |  |
Node-negative | 27.7 | 31.3 | -3.6 |
Node-positive | 54.7 | 60.1 | 5.4 |
Radiation after conservative surgery (lumpectomy, conservation) | |||
   Isolated local recurrence% |  |  |  |
Node-negative | 10.0 | 29.2 | 19.2 |
Node-positive | 13.1 | 46.5 | 33.4 |
   Breast cancer mortality (%) |  |  |  |
Node-negative | 26.1 | 31.2 | 5.1 |
Node-positive | 47.9 | 55.0 | 7.1 |