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. 2009 Oct 7;2009(4):CD003246. doi: 10.1002/14651858.CD003246.pub2

MacLennan 1980.

Methods RCT.
Participants 23 women. Singleton, cephalic, unscarred uterus.
Interventions IV oxytocin 
 vs 
 vaginal PGF2alpha 50 mg x1, then IV oxytocin 4 hrs later if still not in labour.
Outcomes Uterine hyperstimulation with FHR changes, C/S, uterine hyperstimulation without FHR changes, epidural analgesia, instrumental vaginal delivery, perinatal death, maternal vomiting, maternal diarrhoea, chorioamnionitis, neonatal jaundice.
Notes Random lists. Sealed envelopes.
Risk of bias
Bias Authors' judgement Support for judgement
Adequate sequence generation? Unclear risk Random lists ‐ not clear if they were open.
Allocation concealment? Unclear risk Sealed envelopes not clear whether opaque or in any order.
Blinding? 
 Women High risk Different tretament regimes.
Blinding? 
 clinical staff High risk  
Blinding? 
 outcome assessor High risk  
Incomplete outcome data addressed? 
 All outcomes Low risk No loss to follow up apparent.
Free of selective reporting? Low risk