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The stepped wedge cluster randomised trial is a research study design that is increasingly being used in the evaluation of service delivery type interventions. The design involves random and sequential crossover of clusters from control to intervention until all clusters are exposed.
Professor Richard Lilford has over 40 years of experience in medicine, specializing in obstetrics, gynecology, and health services research. He has expertise in evaluating complex interventions, health economics, Bayesian statistics, clinical trials, and medical ethics. His global health work focuses on sanitation, leprosy, and healthcare in slums.
