Table 2.
Prognostic factors in Cox proportional hazards model
| Variable | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| Risk ratio | 95% CI | P | Risk ratio | 95% CI | P | |
| Age (years) | 0.719 | 0.417-1.614 | 0.283 | |||
| ≥ 60 vs. < 60 | ||||||
| Gender | 1.312 | 0.637-2.073 | 0.416 | |||
| Male vs. Female | ||||||
| Tumor size | 2.319 | 0.548-4.773 | 0.143 | |||
| ≥ 3 cm vs. < 3 cm | ||||||
| Histological grade | 2.929 | 1.837-7.146 | 0.005 | 2.417 | 1.611-6.271 | 0.009 |
| II, III vs. I | ||||||
| Lymph nodes metastasis | 4.479 | 2.817-8.692 | 0.004 | 3.641 | 2.382-6.817 | 0.007 |
| Yes vs. No | ||||||
| PVT1 | 3.581 | 2.141-7.793 | 0.011 | 3.273 | 2.184-6.937 | 0.016 |
| high vs. low | ||||||