Explaining the variation in the attained power of a stepped-wedge trial with unequal cluster sizes

BACKGROUND: In a cross-sectional stepped-wedge trial with unequal cluster sizes, attained power in the trial depends on the realized allocation of the clusters. This attained power may differ from the expected power calculated using standard formulae by averaging the attained powers over all allocat...

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Detalles Bibliográficos
Autores principales: Ouyang, Yongdong, Karim, Mohammad Ehsanul, Gustafson, Paul, Field, Thalia S., Wong, Hubert
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7315519/
https://www.ncbi.nlm.nih.gov/pubmed/32580698
http://dx.doi.org/10.1186/s12874-020-01036-5

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7315519/
https://www.ncbi.nlm.nih.gov/pubmed/32580698
http://dx.doi.org/10.1186/s12874-020-01036-5

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