Table 2.
The influence factors of post-operative survival Cox proportional hazard model analysis
| Variable | 95.0% CI used for Exp(B) | ||||||
|---|---|---|---|---|---|---|---|
| B | SE | Wald | p value | Hazard ratio | low | high | |
| basaloid squamous cell carcinoma/PDSC | -.486 | .382 | 1.618 | .203 | .615 | .291 | 1.301 |
| age ≥ 70 | .668 | .375 | 3.173 | .075 | 1.950 | .935 | 4.064 |
| sex | .166 | .517 | .103 | .748 | 1.181 | .429 | 3.252 |
| Smoking | -.253 | .367 | .476 | .490 | .776 | .378 | 1.593 |
| Cardiovascular disease | .408 | .348 | 1.374 | .241 | 1.503 | .760 | 2.971 |
| Operative type-Lobectomy | 5.293 | .071 | |||||
| Operative type-Segmentectomy | -.562 | .378 | 2.209 | .137 | .570 | .272 | 1.196 |
| Operative type-Pneumonectomy | .440 | .545 | .653 | .419 | 1.553 | .534 | 4.519 |
| Left/right lung | .108 | .315 | .119 | .730 | 1.115 | .602 | 2.065 |
| Clinical stage-stage I | 4.837 | .089 | |||||
| Clinical stage-stage II | .696 | .383 | 3.299 | .069 | 2.006 | .946 | 4.250 |
| Clinical stage-stage III/IV | .710 | .358 | 3.929 | .047 | 2.035 | 1.008 | 4.107 |
| Combined therapy | .831 | .371 | 5.013 | .025 | 2.296 | 1.109 | 4.751 |
CI = confidence intervals
PDSC = poorly differentiated squamous cell carcinoma