University of Michigan Center for Statistical 


CaTS -- Power Calculator for Two Stage Association Studies


CaTS is a simple, multi-platform interface for carrying out power calculations for large genetic association studies, including two stage genome wide association studies. The calculations implemented in CaTS are described in Skol et al. (2006). Comments and suggestions are welcome, please e-mail Andrew Skol at


University of Michigan | School of Public Health | Abecasis Lab