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Cesarean delivery rates have risen precipitously during the last 20 years in many countries, partly due to more repeat elective cesarean deliveries instead of vaginal births after cesarean delivery (VBAC). To study the effect of decision aids on mode of delivery, investigators in England and Scotland randomized 742 women with previous cesarean delivery to receive usual care only, usual care plus a computer-based information program, or usual care plus a computer-based decision aid. The information program addressed the health outcomes for mother and baby associated with planned VBAC versus elective cesarean delivery and the probability of each outcome. The decision analysis program required women to rate the utility of each possible outcome…