Sample size calculations for cluster randomised controlled trials with a fixed number of clusters

ABSTRACT: BACKGROUND: Cluster randomised controlled trials (CRCTs) are frequently used in health service evaluation. Assuming an average cluster size, required sample sizes are readily computed for both binary and continuous outcomes, by estimating a design effect or inflation factor. However, where...

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Detalles Bibliográficos
Autores principales: Hemming, Karla, Girling, Alan J, Sitch, Alice J, Marsh, Jennifer, Lilford, Richard J
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2011
Materias:
Commentary
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3149598/
https://www.ncbi.nlm.nih.gov/pubmed/21718530
http://dx.doi.org/10.1186/1471-2288-11-102

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3149598/
https://www.ncbi.nlm.nih.gov/pubmed/21718530
http://dx.doi.org/10.1186/1471-2288-11-102

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