Figure 1

Kaplan-Meier survival estimates for OPR and Non-OPR patients with cervical cancer from the retrospective study, the prospective cohort and the combination of the two studies.
Disease-free survival (DFS) curves of evaluated patients in the retrospective study (A), the prospective cohort (B) and the combined results (C). Log-rank test used to calculate P values. P < 0.05 was considered to be statistically significant.