Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Editorial
. 1998 Oct 31;317(7167):1171-2.
doi: 10.1136/bmj.317.7167.1171.

Cluster randomised trials: time for improvement. The implications of adopting a cluster design are still largely being ignored

M K Campbell, J M Grimshaw
Editorial

Cluster randomised trials: time for improvement. The implications of adopting a cluster design are still largely being ignored

M K Campbell et al. BMJ. .
No abstract available

PubMed Disclaimer

Comment in

References

    1. Donner A. Some aspects of the design and analysis of cluster randomization trials. Appl Statist. 1998;47:95–113.
    1. Kerry SM, Bland JM. Analysis of trials randomised in clusters. BMJ. 1998;316:54. - PMC - PubMed
    1. Rice N, Leyland A. Multilevels models: applications to health data. JHSRP. 1996;1:154–164. - PubMed
    1. Divine GW, Brown JT, Frazier LM. The unit of analysis error in studies about physicians’ patient care behavior. J Gen Intern Med. 1992;7:623–629. - PubMed
    1. Kerry SM, Bland JM. The intracluster correlation coefficient in cluster randomisation. BMJ. 1998;316:1455. - PMC - PubMed

Publication types

MeSH terms