SAMPLE-SIZE REQUIREMENTS FOR STRATIFIED CLUSTER RANDOMIZATION DESIGNS

被引:83
作者
DONNER, A
机构
[1] Department of Epidemiology and Biostatistics, University of Western Ontario, London
关键词
D O I
10.1002/sim.4780110605
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
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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页码:743 / 750
页数:8
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