Skip to main content
An official website of the United States government
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

POWER V3.0 Software

POWER is a windows-based program for computation of sample size and power for binary outcome studies (case-control and cohort studies) based on a logistic-like regression model with one covariate or two covariates (e.g., gene X exposure interactions).

Download Software:

  • Download: Install_PowerV3.exe
  • Save this file in an appropriate folder on your disk.
  • Click on it, and the POWER program will be installed on your machine.

Note: If your computer is running under the Windows 2000 operating system,
the install program must be run from an account with installation privileges (ie. Power User or Administrator).

If you are not sure what privileges you have, please contact your System Administrator.

References:

Suggested reference for the POWER program:

Garcia-Closas M, Lubin JH. Power and sample size calculations in case-control studies of gene-environmental interactions: Comments on different approaches. Am J Epidemiol 1999;149:689-93.

Support:

Questions? Contact DCEG.

Email