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Colon Cancer Risk Assessment - Gauss Program

The Colon Cancer Risk Assessment-Gauss Program is an executable file that projects absolute colon cancer risk according to NCI’s Colorectal Cancer Risk Assessment Tool (CCRAT) algorithm in the batch mode. It also computes 95% confidence intervals for the risk projections.

Users can enter risk factor data and projection interval ages for a group of men or women, and the program will return the corresponding absolute risk projections. This program may be useful for research purposes when one needs risk projections for an entire study population. The program can be run on either a 32-bit or a 64-bit system. To find a program in SAS to compute absolute risk projections (without confidence intervals), please see the Colon Cancer Risk Assessment - SAS Macro page.

Software Download:

Save this file in an appropriate folder on your disk.


  • Freedman AN, Slattery ML, Ballard-Barbash R, Willis G, Cann B, Pee D, Gail MH, Pfeiffer RM. A colorectal cancer risk prediction tool for white men and women without known susceptibility. J Clin Oncol 2009 Feb 10;27(5):686-93. [Pubmed Abstract]
  • Park Y, Freedman AN, Gail MH, Pee D, Hollenbeck A, Schatzkin A, Pfeiffer RM. Validation of a colorectal cancer risk prediction model among whites 50 years old and over. J Clin Oncol 2009 Feb 10;27(5):694-8. [Pubmed Abstract]


Questions? Contact: Ruth Pfeiffer