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

Schaff 2001 M800MI200.

Methods computer generated random assignment, open‐label
Participants multicentre trial at 15 sites in the USA, incl. hospitals, non‐profit abortion facilities, private family practice and gynaecologist offices 
 1168 women, ≤ 63 days pregnant confirmed by ultrasound, without clinical or haematological abnormalities or contraindication to the trial medication
Interventions all women received mifepristone 200mg on day 1 
 group 1: 800mcg misoprostol/po minimum 24 hours after at home 
 group 2: misoprostol 800mcg/pv minimum 24 hours after at home
Outcomes complete, incomplete abortion, time to bleeding, side effects
Notes open ‐ labelled study, power calculation to detect a 5 % difference from 95% to 90% efficacy 
 no hospitalisations and no blood transfusions
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Unclear risk B ‐ Unclear