Ohel 1996.

Methods	Allocation on case number. Concealment unclear.
Participants	200 women with post dates pregnancies requiring induction of labour. Inclusion criteria: singleton pregnancies.
Interventions	3 mg PGE2 vaginal tablet (n = 70) followed by repeat treatment within 3 to 4 days. Expectant group (n = 104) seen twice weekly until induction at 42 weeks. (outpatient administration).
Outcomes	Delivery intervals, mode of delivery, Apgar score at 5 minutes, meconium‐stained liquor.
Notes	26 women randomised to treatment arm wished expectant management but are excluded from analysis. University of Tel Aviv, Israel.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	High risk	Allocation on case number.
Allocation concealment (selection bias)	High risk	Concealment unclear..
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	No blinding.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No blinding.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	200 women recruited, outcomes reported for 174 (13% loss to follow‐up).
Selective reporting (reporting bias)	Unclear risk	Unclear which outcomes prespecified.
Other bias	Unclear risk	Small, single centre RCT.