Vol , Issue Date of Publication: October 01, 2011
DOI: https://doi.org/10.20529/IJME.2011.097

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Ethics in cluster randomised trials: a grey zone

Anant Bhan
Abstract:

Cluster randomised trials (CRTs) are controlled trials in which the randomisation is applied to groups of individuals (clusters) as opposed to individual research participants. CRTs are increasingly being used in a wide variety of research with public health implications (including education). Well conducted CRTs can have a significant effect on policy-making. However, CRTs are only justified in specific circumstances where they might be considered suitable: this might be for reasons of scientific validity, feasibility, appropriateness, to reduce chances of contamination, etc.


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©Indian Journal of Medical Ethics 2016: Open Access and Distributed under the Creative Commons license ( CC BY-NC-ND 4.0),
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