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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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| Main Authors: | , , , , |
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| 格式: | Artigo |
| 語言: | Inglês |
| 出版: |
BioMed Central
2011
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| 主題: | |
| 在線閱讀: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3149598/ https://ncbi.nlm.nih.gov/pubmed/21718530 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2288-11-102 |
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