Chua 1995.

Methods	2‐arm active‐controlled randomised trial
Participants	115 women were randomised in a hospital setting in Singapore. The population comprised women of unspecified parity, a singleton pregnancy, at unspecified risk for PPH, who delivered by vaginal delivery. Exclusion criteria were not specified.
Interventions	125 mcg of carboprost administered IM versus 500 mcg plus 5 IU of ergometrine plus oxytocin administered IM
Outcomes	The study recorded the following outcomes: additional uterotonics; manual removal of placenta; diarrhoea.
Notes	Contact with study authors for additional information: no. Additional data from authors: no
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Randomised by a random number table.
Allocation concealment (selection bias)	Unclear risk	Allocation concealment was not reported.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Blinding (of study participants and caregivers) was unclear.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Assessor blinding was not reported.
Objective assessment of blood loss	Low risk	All blood and blood clots lost in the first 2 hours after delivery were collected by mopping the blood and clots with absorbent paper, and collect the paper in a plastic bag. The bags were sent to the laboratory for processing within 2 hours of completion of blood collection.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	115 women were randomised in the study, but 3 were excluded because they gave birth precipitously before preparing the bed for accurate collection of blood after randomisation.
Selective reporting (reporting bias)	Unclear risk	The protocol of the study was unavailable for verification.
Intention to treat analysis	High risk	Those who were excluded from the study after randomisation were not included in the analysis.
Funding source	Unclear risk	Source(s) of funding for the study were not reported.