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Impact of misspecifying the distribution of a prognostic factor on power and sample size for testing treatment interactions in clinical trials

BACKGROUND: Interaction in clinical trials presents challenges for design and appropriate sample size estimation. Here we considered interaction between treatment assignment and a dichotomous prognostic factor with a continuous outcome. Our objectives were to describe differences in power and sample...

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Detalles Bibliográficos
Autores principales:	Reichmann, William M, LaValley, Michael P, Gagnon, David R, Losina, Elena
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	BioMed Central 2013
Materias:	Research Article
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3605155/ https://www.ncbi.nlm.nih.gov/pubmed/23414513 http://dx.doi.org/10.1186/1471-2288-13-21

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