Methods	RCT, 2-arm trial.
Participants	Setting: 43 women attending antenatal clinics in California, USA Inclusion criteria: women with “post-dates” pregnancies (gestational age > 41 weeks and 6 days based on reliable menstrual history and early ultrasound confirmation) with reactive NST Exclusion criteria: contraindications to prostaglandins.
Interventions	Intervention group: intracervical PGE2 0.5 mg. Comparison group: visually identical placebo gel. Women in both groups were observed for 1 hr with external fetal monitoring and then discharged home
Outcomes	Bishop score on admission, mode of delivery, interval to delivery, length of labour, infant birthweight and Apgar score
Notes
Risk of bias
Item	Authors’ judgement	Description
Adequate sequence generation?	Yes	External sequence generation by hospital pharmacy.
Allocation concealment?	Yes	Coded syringes of identical appearance were dispensed from pharmacy
Blinding? Women	Yes	Placebo controlled trial.
Blinding? Clinical staff	Yes
Blinding? Outcome assessor	Unclear	Not clear when code was revealed.
Incomplete outcome data addressed? All outcomes	Yes	All women randomised appeared to be included in the analyses
Free of other bias?	Yes	No other bias apparent.