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The design and use of cluster randomised controlled trials in evaluating injury prevention interventions: part 2. Design effect, sample size calculations and methods for analysis
- Correspondence to Carol Coupland, Division of Primary Care, Tower Building, University Park, Nottingham NG7 2RD, UK; Carol.coupland{at}nottingham.ac.uk
Citation
The design and use of cluster randomised controlled trials in evaluating injury prevention interventions: part 2. Design effect, sample size calculations and methods for analysis
Publication history
- Accepted November 29, 2009
- First published April 2, 2010.
Online issue publication
April 02, 2010
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© 2010, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.