| Breast Primary First | Lung Primary First |
Smoking history n | 198 (91%) | 31 (89%) |
Radiation treatment n | 145 (67% = 145/217) | 18 (51% = 18/35) |
Ipsilateral radiation n | 75 (52% = 75/145) | 7 (39% = 7/18) |
Cancer-related mortality (%) | 77 | 61 |
Median survival from second diagnosis (months) | 17 | 40 |
Median survival for stage I and II from second diagnosis (months) | 42 | 40 |
Median survival for stage III and IV from second diagnosis (months) | 8 | 42 |