RT Journal Article T1 A cluster-randomized trial to reduce caesarean delivery rates in Quebec: cost-effectiveness analysis A1 Johri, Mira A1 Ng, Edmond S W A1 Bermudez-Tamayo, Clara A1 Hoch, Jeffrey S A1 Ducruet, Thierry A1 Chaillet, Nils K1 Randomized controlled trial K1 Cost-benefit analysis K1 Caesarean section/utilization K1 Pregnancy outcomes K1 Medical audit K1 Guideline adherence K1 Multilevel analysis K1 Female K1 Adult K1 Adolescent K1 Infant K1 Newborn K1 Ensayo clínico controlado aleatorio K1 Análisis costo-beneficio K1 Cesárea K1 Resultado del embarazo K1 Auditoría médica K1 Adhesión a directriz K1 Análisis multinivel K1 Femenino K1 Adulto K1 Adolescente K1 Lactante K1 Recién nacido AB BackgroundWidespread increases in caesarean section (CS) rates have sparked concerns about risks to mothers and infants and rising healthcare costs. A multicentre, two-arm, cluster-randomized trial in Quebec, Canada assessed whether an audit and feedback intervention targeting health professionals would reduce CS rates for pregnant women compared to usual care, and concluded that it reduced CS rates without adverse effects on maternal or neonatal health. The effect was statistically significant but clinically small. We assessed cost-effectiveness to inform scale-up decisions.MethodsA prospective economic evaluation was undertaken using individual patient data from the Quality of Care, Obstetrics Risk Management, and Mode of Delivery (QUARISMA) trial (April 2008 to October 2011). Analyses took a healthcare payer perspective. The time horizon captured hospital-based costs and clinical events for mothers and neonates from labour onset to 3 months postpartum. Resource use was identified and measured from patient charts and valued using standardized government sources. We estimated the changes in CS rates and costs for the intervention group (versus controls) between the baseline and post-intervention periods. We examined heterogeneity between clinical subgroups of high-risk versus low-risk pregnancies and estimated the joint uncertainty in cost-effectiveness over 20,000 trial simulations. We decomposed costs to identify drivers of change.ResultsThe intervention group experienced per-patient reductions of 0.005 CS (95% confidence interval (CI): −0.015 to 0.004, P = 0.09) and $180 (95% CI: −$277 to − $83, P < 0.001). Women with low-risk pregnancies experienced statistically significant reductions in CS rates and costs; changes for the high-risk subgroup were not significant. The intervention was “dominant” (effective in reducing CS and less costly than usual care) in 86.08% of simulations. It reduced costs in 99.99% of simulations. Cost reductions were driven by lower rates of neonatal complications in the intervention group (−$190, 95% CI: −$255 to − $125, P < 0.001). Given 88,000 annual provincial births, a similar intervention could save $15.8 million (range: $7.3 to $24.4 million) in Quebec annually.ConclusionsFrom a healthcare payer perspective, a multifaceted intervention involving audits and feedback resulted in a small reduction in caesarean deliveries and important cost savings. Cost reductions are consistent with improved quality of care in intervention group hospitals. PB BioMed Central YR 2017 FD 2017-05-22 LK http://hdl.handle.net/10668/2890 UL http://hdl.handle.net/10668/2890 LA en NO Johri M, Ng ESW, Bermúdez-Tamayo C, Hoch JS, Ducruet T, Chaillet N. A cluster-randomized trial to reduce caesarean delivery rates in Quebec: cost-effectiveness analysis. BMC Med. 2017 May;15:96 DS RISalud RD Apr 19, 2025