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Sample Size Calculations for Stepped Wedge Designs with Treatment Effects that May Change with the Duration of Time under Intervention

In this supplemental journal issue, Hughes et al., extend existing analysis and sample size estimation guidance for addressing treatment effects that vary over time to cohort stepped-wedge group-randomized trial designs, using the example of a trial to evaluate a multilevel intervention to address health disparities in blood pressure control.

Format: 2024 Supplemental Issue of Prevention Science , Online
Dates: July 2024
Eligibility: Open to the Public
Offered by: Prevention Science: Design and Analytic Methods to Evaluate Multilevel Interventions to Reduce Health Disparities
Presenter: Hughes et al.
Topics: Power Calculations / Sample Size , Stepped-Wedge Designs , Time-Varying Intervention Effects