Online Program

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All Times EDT

Thursday, September 23
Thu, Sep 23, 3:00 PM - 4:15 PM
Virtual
Novel Applications of the Win Ratio in COVID-19: Diseases with Heterogeneous Clinical Manifestations or Diseases with Benefit in Multiple Domains

Statistical Considerations for Studies with Composite Outcomes (303536)

*Ionut Bebu, George Washington University 

Many clinical studies (e.g., cardiovascular outcome trials) investigate the effect of an intervention on multiple event-time outcomes. The most common method of analysis is a so-called "composite" analysis of a composite outcome defined as the time to the first component event. Other approaches have been proposed, including the win ratio (or win difference) for ordered outcomes and the application of the Wei-Lachin test. We provide an overview of these methods, followed by an assessment of the influence of the marginal and joint distributions of the component events, and their correlation structures, on the operating characteristics of these methods for the analysis of multiple events. A novel outcome-weighted approach for pairwise comparisons is described. Data from clinical trials are used as illustration.