Table 3.
Cox multivariate regression analysis for overall survival.
| Variable | HR | 95% CI | P value |
|---|---|---|---|
| No XRT | 1.00 | Reference | <0.001 |
| Adjuvant XRT | 0.67 | 0.64–0.71 | |
| Age | |||
| ≤60 | 1.00 | Reference | <0.001 |
| >60 | 1.49 | 1.42–1.57 | |
| Gender | |||
| Male | 1.00 | Reference | <0.001 |
| Female | 0.88 | 0.84–0.91 | |
| Race | |||
| White | 1.00 | Reference | |
| Black | 1.06 | 0.99–1.13 | 0.075 |
| Other | 0.77 | 0.73–0.81 | <0.001 |
| Lymph nodes | |||
| LN <15 : >25 | 0.65 | 0.60–0.69 | <0.001 |
| LN 15–26 : >25 | 0.84 | 0.78–0.91 | <0.001 |
| Stage | |||
| IA | 1.00 | Reference | |
| IB | 1.689 | 1.55–1.84 | 0.004 |
| II | 3.08 | 2.84–3.35 | <0.001 |
| IIIA | 4.44 | 4.08–4.83 | <0.001 |
| IIIB | 6.02 | 5.34–6.78 | 0.003 |
| IV (M0) | 7.14 | 6.52–7.82 | <0.001 |