Cluster randomised trials: time for improvement. The implications of adopting a cluster design are still largely being ignored.
作者： M. K Campbell , J. M Grimshaw
DOI: 10.1136/BMJ.317.7167.1171
关键词: Physical therapy 、 Disease cluster 、 Health professionals 、 Cluster design 、 Health services research 、 General practice 、 Cluster randomised controlled trial 、 Psychological intervention 、 Medicine 、 Outcome (game theory)
摘要: … Standard statistical techniques are no longer appropriate, unless an aggregated analysis is performed at the level of the cluster, 2 as they require data to be independent. If the …
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