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Planning a cluster randomized trial with unequal cluster sizes: practical issues involving continuous outcomes
BACKGROUND: Cluster randomization design is increasingly used for the evaluation of health-care, screeening or educational interventions. At the planning stage, sample size calculations usually consider an average cluster size without taking into account any potential imbalance in cluster size. Howe...
| Autores principales: | , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2006
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1513250/ https://www.ncbi.nlm.nih.gov/pubmed/16611355 http://dx.doi.org/10.1186/1471-2288-6-17 |