## Abstract Health care utilization and outcome studies call for hierarchical approaches. The objectives were to predict major complications following percutaneous coronary interventions by health providers, and to compare Bayesian and nonβBayesian sample size calculation methods. The hierarchical
Sample size calculations for clinical trials
β Scribed by Shein-Chung Chow
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2011
- Tongue
- English
- Weight
- 241 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0163-1829
- DOI
- 10.1002/wics.155
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Procedures are developed in this paper for sample size calculations for planning a group sequential longitudinal trial with various correlation structures, using a test statistic based on generalized estimating equations (Lee, Kim and Tsiatis) and group sequential boundaries based on type I error sp