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.
Original language | English |
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Pages (from-to) | 616-621 |
Number of pages | 6 |
Journal | Biometrics |
Volume | 56 |
Issue number | 2 |
DOIs | |
State | Published - Jun 2000 |
Keywords
- Cluster randomized
- Clusters
- Multivariate survival
- Sample size
- Survival