Comparison 1. Closure of subcutaneous tissue versus non‐closure of subcutaneous tissue.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Wound infection	5	1348	Risk Ratio (M‐H, Fixed, 95% CI)	1.02 [0.69, 1.50]
2 Haematoma +/‐ seroma	5	1348	Risk Ratio (M‐H, Fixed, 95% CI)	0.52 [0.33, 0.82]
3 Aggregate wound complications (infection, wound separation, haematoma or seroma)	6	1786	Risk Ratio (M‐H, Fixed, 95% CI)	0.68 [0.52, 0.88]
4 Endometritis	1	590	Risk Ratio (M‐H, Fixed, 95% CI)	0.77 [0.46, 1.28]
5 Duration of surgery (minutes)	1	590	Mean Difference (IV, Fixed, 95% CI)	0.60 [‐2.29, 3.49]
6 Mean blood loss (ml)	1	590	Mean Difference (IV, Fixed, 95% CI)	9.0 [‐24.29, 42.29]