Clinical outcomes after surgery
All patients underwent vaginal repair. The clinical data are summarized in Table S2. No significant differences in the duration of the surgical procedure, hospitalization stay, and hospitalization cost were observed between the groups (p > 0.05). However, the hemoglobin level on the first postoperative day was significantly higher in group-B patients than that in group-A patients (106.0 ± 11.2 g/L vs 99.5 ± 13.4 g/L, p < 0.05). In addition, four out of 228 patients in group B had complications (two cases of bladder injury and two cases of hematoma), whereas one out of 50 patients in group A had a complication (hematoma). Thus, the incidence of perioperative complications was 1.8% and 2.0% in the two groups, respectively.