Table 6.
Cox proportional-hazard regression for OS
| Characteristics | Univariate analysis | Multivariate analysis | ||||||
|---|---|---|---|---|---|---|---|---|
| p-Value | HR | 95% CI for Exp(B) | p-Value | HR | 95% CI for Exp(B) | |||
| Lower | Upper | Lower | Upper | |||||
| Gender | 0.659 | 1.071 | 0.791 | 1.449 | ||||
| Age | 0.007 | 1.527 | 1.125 | 2.074 | 0.000 | 2.011 | 1.464 | 2.763 |
| Tumor size | 0.265 | 0.819 | 0.577 | 1.163 | ||||
| Gross morphology | 0.813 | 1.029 | 0.811 | 1.307 | ||||
| Differentiation | 0.000 | 0.291 | 0.211 | 0.400 | 0.000 | 0.436 | 0.288 | 0.662 |
| Histological component | 0.000 | 2.291 | 1.483 | 3.539 | ||||
| T | 0.000 | 1.581 | 1.285 | 1.946 | ||||
| N | 0.000 | 2.059 | 1.718 | 2.469 | 0.007 | 1.577 | 1.133 | 2.196 |
| pTNM | 0.000 | 2.126 | 1.681 | 2.688 | 0.038 | 1.609 | 1.344 | 2.079 |
| Vascular invasion | 0.000 | 4.157 | 2.603 | 6.638 | 0.029 | 1.832 | 1.063 | 3.159 |
| Nerve invasion | 0.002 | 3.063 | 1.506 | 6.233 | ||||
| CEA | 0.008 | 1.505 | 1.112 | 2.035 | ||||
| Ligation level | 0.475 | 1.115 | 0.827 | 1.503 | ||||