Table 1.
Patient and Disease Characteristics (N = 1147)
| Characteristic | N (%)a |
|---|---|
| Sex | |
| Male | 888 (77.4) |
| Female | 259 (22.6) |
| Age, years | |
| Mean (SD) | 63 (10.7) |
| Range | 21–89 |
| Histologic type | |
| Squamous cell carcinoma | 205 (17.9) |
| Adenocarcinoma | 942 (82.1) |
| Induction therapy | |
| Chemotherapy | 67 (5.8) |
| Chemoradiation therapy | 656 (57.2) |
| None | 424 (37.0) |
| Margins | |
| R0 | 1070 (93.3) |
| R1 | 77 (6.7) |
| Pathologic stage | |
| IA | 194 (16.9) |
| IB | 172 (15.0) |
| IIA | 79 (6.9) |
| IIB | 264 (23.0) |
| IIIA | 140 (12.2) |
| IIIB | 71 (6.2) |
| IIIC | 73 (6.4) |
| Recurrence | 435 (37.9) |
| Distant | 241 (55.4) |
| Locoregional | 121 (27.8) |
| Distant + locoregional | 73 (16.8) |
a
Percentage of all recurrences.