Comparison 7. Sensitivity analysis no.2.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 FIXED; Pain score at day 1	10	835	Mean Difference (IV, Fixed, 95% CI)	‐2.20 [‐2.27, ‐2.13]
2 FIXED; Postoperative bleeding	11	1108	Odds Ratio (M‐H, Fixed, 95% CI)	0.51 [0.23, 1.15]
3 FIXED; Urinary retention	10	996	Odds Ratio (M‐H, Fixed, 95% CI)	0.40 [0.20, 0.82]
4 FIXED; Anal stenosis	9	931	Odds Ratio (M‐H, Fixed, 95% CI)	0.95 [0.23, 3.86]
5 FIXED; Symptoms of incontinence at follow‐up	8	896	Odds Ratio (M‐H, Fixed, 95% CI)	0.65 [0.21, 1.98]
6 FIXED; Hospital stay in days	6	525	Mean Difference (IV, Fixed, 95% CI)	‐0.15 [‐0.18, ‐0.13]