Sample size estimation for survival outcomes in cluster-randomized studies with small cluster sizes |
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| Authors: | Manatunga A K Chen S |
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| Affiliation: | The Rollins School of Public Health of Emory University, Atlanta, Georgia 30322, USA. amanatu@sph.emory.edu |
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| Abstract: | We present a method for computing sample size for cluster-randomized studies involving a large number of clusters with relatively small numbers of observations within each cluster. For multivariate survival data, only the marginal bivariate distribution is assumed to be known. The validity of this assumption is also discussed. |
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| Keywords: | Clusters Cluster randomized Multivariate survival Sample size Survival |
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