Bagratee 1990.

Methods	RCT. Random number tables, stratified for parity. No details were given on the method for concealment of the allocation.
Participants	Women with unfavourable cervix (BS < 7).
Interventions	Lamicel (40 women); (PGE2) (2 mg tablet) (40 women). After 6 hours, oxytocin was started in both groups.
Outcomes	CS, hyperstimulation, fetal distress, perinatal death.
Notes	No outcome reported in subgroups. setting: king Edward VIII hospital, Durban, South Africa Study period: for 6 months, no exact dates reported Funding: not reported Declarations of interest: not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Random number tables
Allocation concealment (selection bias)	Unclear risk	Unclear, 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	High risk	No ITT mentioned, in table 4 cases missing, not clear why.
Selective reporting (reporting bias)	Low risk	All pre‐specified outcomes reported
Other bias	Low risk	No other bias detected