Group Number of cases Number of end events Survival analysis (K-M method) Cox regression multivariate analysis
Cumulative survival rate(%) P value risk ratio 95%CI Pvalue
Unadjusted OS DFS laparotomy vs. laparoscopy laparotomy vs. laparoscopy 2478 vs.1504 2478 vs.1504 71 vs.31 150 vs.95 96.2% vs.96.0% 0.989 92.2% vs.90.4% 0.022 1.122 0.732-1.719 0.598 1.468 1.131-1.906 0.004
Adjusted OS DFS laparotomy vs. laparoscopy laparotomy vs. laparoscopy 2391 vs.1495 2391 vs.1495 63 vs.31 136 vs.95 96.5% vs.96.0% 0.684 92.7% vs.90.8% 0.006 1.153 0.747-1.780 0.521 1.512 1.159-1.971 0.002