Ngoc 2004

Methods	Randomised by opening sequentially numbered envelope ‐ prepared by computer‐generated code in blocks of 10.
Participants	200 women in Ho Chi Minh City, Vietnam, with non‐viable first trimester pregnancies (anembryonic or early fetal death) diagnosed by ultrasound; cervix closed.
Interventions	Oral misoprostol 800 mcg (n = 100) versus vaginal misoprostol 800 mcg (n = 98). Women reviewed after 48 hours; if retained products present, they were given option of surgical evacuation or further review after another 5 days (when evacuation was performed if there were still products present).
Outcomes	Primary: complete miscarriage without need for surgical evacuation. Secondary: adverse effects.
Notes	2 women lost to follow up.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	A ‐ Adequate