Table 3. Clinical prognostic factors.
| Characteristic | n=36 (%) | 1-year OS (%) | P | 3-year OS (%) | P | 5-year OS (%) | P |
|---|---|---|---|---|---|---|---|
| Gender | 0.68 | 0.73 | 0.65 | ||||
| Male | 17 (47.2) | 13 (76.4) | 7 (41.2) | 3 (17.7) | |||
| Female | 19 (52.8) | 16 (84.2) | 6 (31.6) | 2 (10.5) | |||
| Age, y | 0.68 | 0.07 | 1.00 | ||||
| ≤70 | 22 (61.1) | 17 (77.3) | 5 (22.7) | 2 (9.1) | |||
| >70 | 14 (38.9) | 12 (85.7) | 8 (57.1) | 3 (21.4) | |||
| AJCC T stage | 0.19 | 0.02* | 0.45 | ||||
| T3 | 8 (22.2) | 8 (100.0) | 6 (75.0) | 1 (12.5) | |||
| T4a | 23 (63.9) | 18 (78.3) | 7 (30.4) | 4 (17.4) | |||
| T4b | 5 (13.9) | 3 (60.0) | 0 (0.0) | 0 (0.0) | |||
| AJCC N stage | 0.23 | 0.33 | 0.14 | ||||
| N0 | 27 (75.0) | 23 (85.2) | 13 (48.2) | 5 (18.5) | |||
| N1 | 9 (25.0) | 6 (66.7) | 0 (0.0) | 0 (0.0) | |||
| AJCC M stage | 0.16 | 0.27 | 1.00 | ||||
| M0 | 32 (88.9) | 27 (84.4) | 13 (43.8) | 5 (15.6) | |||
| M1 | 4 (11.1) | 2 (50.0) | 0 (0.0) | 0 (0.0) |
*, P<0.05.