Dissemination of a quality improvement intervention to reduce early term elective deliveries and improve birth registry accuracy at scale in Ohio

Methods Participating hospitals were exposed to an 8-month QI intervention to reduce non-medically indicated scheduled deliveries <39 weeks and reflect those improvements in accurate state vital statistics data. The intervention was implemented using a step-wedge design with hospitals divided into three balanced waves. Effectiveness was assessed using interrupted time-series analysis. Interviews with a sample of participants and project call recordings were analyzed using qualitative methods to understand implementation.