Power and sample size calculation for the win odds test: application to an ordinal endpoint in COVID-19 trials

Autor: Gary G. Koch, Elaine K Kowalewski, Olof Bengtsson, John Adler, Samvel B. Gasparyan, Joan Buenconsejo, Folke Folkvaljon
Rok vydání: 2021
Předmět:
Zdroj: Journal of Biopharmaceutical Statistics. 31:765-787
ISSN: 1520-5711
1054-3406
Popis: The win odds is a distribution-free method of comparing locations of distributions of two independent random variables. Introduced as a method for analyzing hierarchical composite endpoints, it is well suited to be used in the analysis of ordinal scale endpoints in COVID-19 clinical trials. For a single outcome, we provide power and sample size calculation formulas for the win odds test. We also provide an implementation of the win odds analysis method for a single ordinal outcome in a commonly used statistical software to make the win odds analysis fully reproducible.
Databáze: OpenAIRE