PubMed · 15568188
Sample size calculations for comparative clinical trials with over-dispersed Poisson process data.
Abstract
This paper develops a new formula for sample size calculations for comparative clinical trials with Poisson or over-dispersed Poisson process data. The criteria for sample size calculations is developed on the basis of asymptotic approximations for a two-sample non-parametric test to compare the empirical event rate function between treatment groups. This formula can accommodate time heterogeneity, inter-patient heterogeneity in event rate, and also, time-varying treatment effects. An application of the formula to a trial for chronic granulomatous disease is provided.
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Shigeyuki Matsui. 2005-05-15. Sample size calculations for comparative clinical trials with over-dispersed Poisson process data.. https://doi.org/10.1002/sim.2011
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