Table 3. Cox proportional hazard model for OS (n=91).
| Univariate | Multivariate | |||
|---|---|---|---|---|
| Hazard ratio (95% CI) | p value | Hazard ratio (95% CI) | p value | |
| Gender (male vs female) | 0.583 (0.245-1.387) | 0.223 | 0.778 (0.162-3.734) | 0.753 |
| Smokinga (non- vs smoker) | 1.812 (0.762-4.313) | 0.179 | 1.516 (0.300-7.661) | 0.615 |
| Histology (Ad vs Sq) | 0.847 (0.340-2.110) | 0.722 | 1.451 (0.522-4.029) | 0.475 |
| Pleural invasion (neg vs pos) | 2.476 (1.145-5.356) | 0.021 * | 2.034 (0.776-5.334) | 0.149 |
| Lymphatic invasion (neg vs pos) | 3.011 (1.392-6.512) | 0.005 * | 1.503 (0.490-4.612) | 0.476 |
| Vascular invasion (neg vs pos) | 2.180 (1.305-3.644) | 0.003 * | 1.088 (0.519-2.279) | 0.824 |
| Lymphnode metastasis (neg vs pos) | 3.737 (1.710-8.166) | 0.001 * | 2.643 (0.919-7.603) | 0.071 |
| Category (1,2 vs 3) | 0.341 (0.154-0.753) | 0.008 * | 0.329 (0.144-0.753) | 0.009 * |
a
: Data not available for one patient.
OS: Overall survival, CI: confidence interval, Ad: adenocarcinoma, Sq: squamous cell carcinoma.
*
: p>0.05