Comparison 21. Tocolytics vs placebo ‐ nullips vs multips.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Cephalic presentation at birth (primary)	2	249	Risk Ratio (M‐H, Random, 95% CI)	1.89 [0.98, 3.62]
1.1 Nullips	2	170	Risk Ratio (M‐H, Random, 95% CI)	2.13 [1.02, 4.45]
1.2 Multips	2	79	Risk Ratio (M‐H, Random, 95% CI)	2.02 [0.45, 9.15]
2 Caesarean section (primary)	2	249	Risk Ratio (M‐H, Random, 95% CI)	0.84 [0.74, 0.95]
2.1 Nullips	2	170	Risk Ratio (M‐H, Random, 95% CI)	0.85 [0.75, 0.97]
2.2 Multips	2	79	Risk Ratio (M‐H, Random, 95% CI)	0.67 [0.38, 1.17]
3 Fetal bradycardia (primary)	0	0	Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
3.1 Nullips	0	0	Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
3.2 Multips	0	0	Risk Ratio (M‐H, Random, 95% CI)	0.0 [0.0, 0.0]
4 Failed external cephalic version	6	513	Risk Ratio (M‐H, Random, 95% CI)	0.78 [0.66, 0.92]
4.1 Nullips	6	323	Risk Ratio (M‐H, Random, 95% CI)	0.85 [0.76, 0.95]
4.2 Multips	6	190	Risk Ratio (M‐H, Random, 95% CI)	0.60 [0.38, 0.95]