Table 3.
Selected variables by multivariate Cox regression analysis (training cohort) CSS
| Variables | Multivariate analysis | ||
|---|---|---|---|
| HR | 95% CI | P‐value | |
| Age at diagnosis | 1.030 | 1.017‐1.043 | ＜0.001 |
| Race | |||
| White | Reference | ||
| Black | 2.413 | 1.027‐5.668 | 0.043 |
| Others | 1.117 | 0.454‐2.749 | 0.810 |
| Marital status | |||
| Married | Reference | ||
| Unmarried | 0.542 | 0.306‐0.958 | 0.035 |
| Others | 1.181 | 0.708‐1.970 | 0.525 |
| AJCC | |||
| I | Reference | ||
| II | 2.182 | 1.338‐3.560 | 0.002 |
| III | 6.745 | 4.016‐11.323 | ＜0.001 |
| IV | 15.981 | 10.326‐24.733 | ＜0.001 |
| Surgery | |||
| Yes | Reference | ||
| No | 2.128 | 1.337‐3.384 | 0.001 |
Abbreviations: AJCC, American Joint Committee on Cancer; CI, confidence interval; CSS, cancer‐specific survival; HR, hazard ratio.