“…These three studies identified increasing parity, prior cesarean delivery, obesity [body mass index (BMI)], initial human chorionic gonadotropin (hCG), older age and prior spontaneous abortion as predictors of uterine evacuation. A prior pooled analysis of four trials who received mifepristone 600 mg with oral misoprostol, with uterine evacuation performed in 3.9% to 14.6%, reported that women younger than 23 years, at less than 50 days' gestation and with no prior abortions were more likely to have a successful medical abortion [9].…”