doi: 10.1002/sim.4780110605.
Sample size requirements for stratified cluster randomization designs
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- PMID: 1594813
- DOI: 10.1002/sim.4780110605
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Sample size requirements for stratified cluster randomization designs
Stat Med.
1992 Apr.
Erratum in
- Stat Med 1997 Dec 30;16(24):2927-8
Abstract
Sample size requirements are provided for designs of studies in which clusters are randomized within each of several strata, where cluster size itself may be a stratifying factor. The approach generalizes a formula derived by Woolson et al., which provides sample size requirements for the Cochran-Mantel-Haenszel statistic. Issues of data analysis are also discussed.
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