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How to design efficient cluster randomised trials

Cluster randomised trials have diminishing returns in power and precision as cluster size increases. Making the cluster a lot larger while keeping the number of clusters fixed might yield only a very small increase in power and precision, owing to the intracluster correlation. Identifying the point...

Disgrifiad llawn

Wedi'i Gadw mewn:
Manylion Llyfryddiaeth
Cyhoeddwyd yn:BMJ
Prif Awduron: Hemming, K, Eldridge, S, Forbes, G, Weijer, C, Taljaard, M
Fformat: Artigo
Iaith:Inglês
Cyhoeddwyd: BMJ Publishing Group Ltd. 2017
Pynciau:
Mynediad Ar-lein:https://ncbi.nlm.nih.gov/pmc/articles/PMC5508848/
https://ncbi.nlm.nih.gov/pubmed/28710062
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1136/bmj.j3064
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