Comparison 5. Sulphonamides versus placebo.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Abdominal wound infection	2		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
1.1 Abdominal hysterectomy	2	119	Risk Ratio (M‐H, Fixed, 95% CI)	1.23 [0.35, 4.35]
2 Urinary tract infection	3		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
2.1 Vaginal hysterectomy	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	0.36 [0.15, 0.84]
2.2 Abdominal hysterectomy	2	157	Risk Ratio (M‐H, Fixed, 95% CI)	0.18 [0.06, 0.50]
3 Pelvic infection	3		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
3.1 Vaginal hysterectomy	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	0.14 [0.01, 2.63]
3.2 Abdominal hysterectomy	2	119	Risk Ratio (M‐H, Fixed, 95% CI)	0.11 [0.01, 0.84]
4 Postoperative fever	3		Risk Ratio (M‐H, Fixed, 95% CI)	Subtotals only
4.1 Vaginal hysterectomy	1	50	Risk Ratio (M‐H, Fixed, 95% CI)	0.5 [0.26, 0.95]
4.2 Abdominal hysterectomy	2	157	Risk Ratio (M‐H, Fixed, 95% CI)	0.63 [0.38, 1.04]
5 Length of hospital stay	5		Mean Difference (IV, Fixed, 95% CI)	Subtotals only
5.1 Vaginal hysterectomy	3	276	Mean Difference (IV, Fixed, 95% CI)	‐0.86 [‐1.22, ‐0.49]
5.2 Abdominal hysterectomy	3	358	Mean Difference (IV, Fixed, 95% CI)	‐1.33 [‐1.68, ‐0.97]