Table III. Multivariate Cox proportional hazards analysis of clinicopathological factors for overall (OS) and recurrence-free (RFS) survival of patients with esophageal cancer.

ASA-PS: American Society of Anesthesiologists Physical Status; HR: hazard ratio; CI: confidence interval; CRP: C-reactive protein; POD: postoperative day. ASA-PS: aAccording to the Union for International Cancer Control (23).