Wong 2002.

Methods	Random allocation based on computer generated random numbers, in blocks of 20, stratified by parity. Concealment of allocation by sealed, opaque envelopes.
Participants	Pregnant women beyond 40 weeks of gestation; certain dates by last menstrual periods, ultrasound scan before 26 weeks.
Interventions	Sweeping of membranes or no examination.
Outcomes	Induction of labour, PROM, fever, mode of delivery, Apgar score, neonatal infection, death.
Notes	4 obstetricians; results not reported according to parity.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Low risk	A ‐ Adequate

AFI: amniotic fluid index 
 ANC: antenatal clinic 
 LSCS: low segment caesarean section 
 NICU: neonatal intensive care unit 
 NST: non stress test 
 PGE2: prostaglandin E2 
 PROM: prelabour rupture of membranes 
 vs: versus