Table 3 Multivariate Cox proportional hazard analysis of the overall survival
Factors | relative risk | 95% confidence interval | p value |
|---|---|---|---|
T factor (T1 vs T2-4) | 0.521 | 0.285 - 0.953 | 0.0344 |
Surgical procedure ((Pneumonectomy/bilobectomy vs Lobectomy) | 0.676 | 0.417 - 1.097 | 0.1131 |
Number of involved lymph nodes (l or 2 vs 3≤) | 0.456 | 0.265 - 0.785s | 0.0046 |