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. 2011 Nov 9;2011(11):CD002855. doi: 10.1002/14651858.CD002855.pub4

El‐Refaey 1994.

Methods sealed, opaque envelopes 
 random assignment before misoprostol administration
Participants 150 pregnant women </= 56 days of amenorrhoea, confirmed by ultrasound
Interventions group 1: mifepristone 200mg and misoprostol 800mcg/oral after 48 hours 
 group 2: mifepristone 200mg and misoprostol 400mcg after 48 hours plus 400mcg 2 hours later/oral
Outcomes changes in blood pressure, pulse rate and temperature 
 complete and incomplete abortion 
 ongoing pregnancy 
 side effects 
 bleeding pattern
Notes power calculation (5% significance level to detect a 20% reduction in incidence of side effects) 
 no mentioning of major complications
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Low risk A ‐ Adequate