Comparison 1. Prophylactic oxytocin injection (delivered by CHO) versus control (no injection).

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Severe postpartum haemorrhage 1 (> 1000 mL)	1	1570	Risk Ratio (M‐H, Fixed, 95% CI)	0.16 [0.02, 1.30]
2 Severe maternal morbidity	1	1570	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
3 Maternal deaths	1	1570	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
4 Postpartum haemorrhage (1) > 500 mL1	1	1569	Risk Ratio (M‐H, Fixed, 95% CI)	0.48 [0.28, 0.81]
5 Postpartum haemorrhage (1) >500 mL (adjusted by design effect)	1	1174	Risk Ratio (M‐H, Fixed, 95% CI)	0.49 [0.27, 0.90]
6 Transfer or referral to a healthcare facility	1	1586	Risk Ratio (M‐H, Fixed, 95% CI)	0.72 [0.34, 1.56]
7 Maternal major/minor adverse events	1	1570	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
8 Oxytocin use during labour	1	1570	Risk Ratio (M‐H, Fixed, 95% CI)	0.0 [0.0, 0.0]
9 Stillbirth	1	2006	Risk Ratio (M‐H, Fixed, 95% CI)	1.27 [0.67, 2.40]
10 Early infant death (0‐3 days)	1	1969	Risk Ratio (M‐H, Fixed, 95% CI)	1.03 [0.35, 3.07]