Methods	RCT; 2 parallel groups.
	Unit of randomization: individual.
Participants	Dates of data collection: not reported.
	Setting: University College Hospital, Ibadan, Nigeria. Majority of patients from low socioeconomic class
	Inclusion criteria: both elective and non-elective cesarean deliveries
	Exclusion criteria: fever or obvious infection before operation
Interventions	Ampicillin 500 mg before operation and 250 mg 6 hourly for at least 7 days (IM until able to take orally) (N = 58) vs no antibiotics unless temperature 38 degrees C after the third post-operative day (N = 48). Both groups received curative doses of chloroquine
Outcomes	Wound infection; UTI (not defined further); ’genital sepsis’ (not defined further: study group 5/58; control group 15/48)
Notes	Prophylaxis continued for 7 days.
	Class of antibiotic: Aminopenicillin (ampicillin).
	Subgroups
	both elective and non-elective CS - data could not be separated by type CS; before cord clamping.
Risk of bias
Item	Authors’ judgement	Description
Adequate sequence generation?	Unclear	‘Divided randomly into 2 groups.’
		No additional details.
Allocation concealment?	Unclear	No information was provided.
Blinding?	Unclear	Not placebo-controlled.
All outcomes		No additional details.
Incomplete outcome data addressed?	Unclear	No loss to follow up reported.
All outcomes		No participants excluded; imbalance in group size not accounted for (58 vs 48)
		ITT analysis.
Free of selective reporting?	Unclear	Insufficient information to judge.
Free of other bias?	Unclear	The 2 groups were comparable regarding age, parity and indications for CS
Overall low risk of bias?	Unclear	Very little information provided to assess risk of bias.