Jeeva 1982.

Methods	RCT. No details on the method of randomisation or on concealment of the allocation.
Participants	No description of inclusion/exclusion criteria. 10 primigravidas and 10 multigravidas.
Interventions	Laminaria tents (2 ‐ 3 tents) (10 women); (PGE2) 4 mg tablets vaginally.
Outcomes	Change in BS after 16 hours, CS.
Notes	Setting: South Africa Dates of study: not reported Funding sources: not reported Declarations of interest: not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Only reported women were randomised
Allocation concealment (selection bias)	Unclear risk	Not reported
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not feasible due to nature of intervention
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not reported
Incomplete outcome data (attrition bias) All outcomes	Low risk	ITT not mentioned, but seems reasonable as numbers in tables are equal to randomised numbers, no cases missing
Selective reporting (reporting bias)	Unclear risk	Insufficient information as no outcome measures were pre‐specified in report
Other bias	Low risk	No other bias detected