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Erratum to: Sample size calculations for cluster randomised controlled trials with a fixed number of clusters
BMC Medical Research Methodology volume 17, Article number: 8 (2017)
Erratum
After publication of the original article [1], it came to the authors’ attention that there was a typing error in equation 16. There should be a rho on the denominator of this equation.
The published version of equation 16 is:
The correct version of equation 16 is:
References
Hemming K, Girling AJ, Sitch AJ, Marsh J, Lilford RJ. Sample size calculations for cluster randomised controlled trials with a fixed number of clusters. BMC Med Res Methodol. 2011;11:102. doi:10.1186/1471-2288-11-102.
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The online version of the original article can be found under doi:10.1186/1471-2288-11-102.
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Hemming, K., Girling, A.J., Sitch, A.J. et al. Erratum to: Sample size calculations for cluster randomised controlled trials with a fixed number of clusters. BMC Med Res Methodol 17, 8 (2017). https://doi.org/10.1186/s12874-017-0292-x
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DOI: https://doi.org/10.1186/s12874-017-0292-x