Factors | DFS Hazard ratio (95% CI) | P-value | OS Hazard ratio (95% CI) | P-value |
---|---|---|---|---|
Univariate analyses | ||||
 Age | 1.107 (0.752-1.375) | 0.912 | 1.052 (0.779-1.423) | 0.740 |
 HPV | 1.119 (0.769-1.627) | 0.557 | 1.011 (0.696-1.470) | 0.953 |
 Differentiation | 1.206 (0.992-1.467) | 0.061 | 1.181 (0.975-1.431) | 0.090 |
 Stage | 2.110 (1.552-2.870) | 0.000** | 1.885 (1.391-2.553) | 0.000** |
 Lymph node | 1.706 (1.260-2.310) | 0.001** | 1.597 (1.182-2.157) | 0.002** |
 NQO1 | 1.649 (1.222-2.224) | 0.001* | 1.397 (1.038-1.880) | 0.027* |
Multivariate analyses | ||||
 Stage | 1.803 (1.306-2.490) | 0.000** | 1.686 (1.223-2.324) | 0.001** |
 Lymph node | 1.449 (1.060-1.981) | 0.020* | 1.396 (1.022-1.906) | 0.036* |
 NQO1 | 1.387 (1.017-1.890) | 0.039* | 1.154 (0.845-1.576) | 0.368 |