Table 4 Survival differences after multivariate Cox proportional hazard regression analysis
From: Right versus left transthoracic approach for lymph node-negative esophageal squamous cell carcinoma
Item | P by Cox regression | Hazard ratio | 95 % Confidence interval |
|---|---|---|---|
Age | 0.011 | 1.016 | 1.004–1.028 |
Smoking history | 0.028 | 1.314 | 1.030–1.677 |
Drinking history | 0.001 | 1.556 | 1.201–2.015 |
Duration of surgery | 0.207 | 1.001 | 0.999–1.003 |
Tumor staging | 0.000 | 1.441 | 1.205–1.723 |
Operation approach | 0.193 | 1.064 | 0.969–1.168 |