An imbalance in cluster sizes does not lead to notable loss of power in cross-sectional, stepped-wedge cluster randomised trials with a continuous outcome

BACKGROUND: The current methodology for sample size calculations for stepped-wedge cluster randomised trials (SW-CRTs) is based on the assumption of equal cluster sizes. However, as is often the case in cluster randomised trials (CRTs), the clusters in SW-CRTs are likely to vary in size, which in ot...

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Detalles Bibliográficos
Autores principales: Kristunas, Caroline A., Smith, Karen L., Gray, Laura J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Methodology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5341460/
https://www.ncbi.nlm.nih.gov/pubmed/28270224
http://dx.doi.org/10.1186/s13063-017-1832-8

Internet

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5341460/
https://www.ncbi.nlm.nih.gov/pubmed/28270224
http://dx.doi.org/10.1186/s13063-017-1832-8

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