Table 1.
Case characteristics.
| Characteristic | N (%) | |
|---|---|---|
| Primary Cancer | 1 | 1481 (92) |
| 2 | 132 (8) | |
| 3 | 6 (0) | |
| Gender | Male | 798 (49) |
| Female | 821 (51) | |
| Age at Dx | <= 65 | 780 (48) |
| >= 65 | 829 (52) | |
| Race | Caucasian | 1213 (75) |
| African American | 250 (15) | |
| Other | 156 (10) | |
| TNM stage | 1 | 856 (53) |
| 2 | 255 (16) | |
| 3 | 367 (23) | |
| Missing | 141 (8) | |
| Histology | Adenocarcinoma | 838 (52) |
| Squamous | 361 (22) | |
| Small cell | 88 (5) | |
| Non-small cell, other | 332 (21) | |
| Primary treatment | Local only | 980 (61) |
| Local + systemic | 639(39) | |
| Recurrence | Yes | 487 (30) |
| No | 1086 (67) | |
| Unknown | 46 (3) | |
| Type of first recurrence | No recurrence | 1086 (67) |
| Local | 108 (7) | |
| Regional | 103 (6) | |
| Distant | 273 (17) | |
| Unknown | 49 (3) | |
| Site of first distant recurrence | Bone | 31 (11) |
| CNS | 102 (37) | |
| Liver | 12 (4) | |
| Lung | 14 (5) | |
| Other | 93 (34) | |
| Multiple | 21 (8) | |