Skip to main content

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