MMWR: Vital Signs: Colorectal Cancer Screening Among Adults Aged 50--75 Years --- United States, 2008

Every 2 years, CDC uses Behavioral Risk Factor Surveillance System data to estimate up-to-date CRC screening prevalence in the United States. Adults aged ≥50 years were considered to be up-to-date with CRC screening if they reported having a fecal occult blood test (FOBT) within the past year or lower endoscopy (i.e., sigmoidoscopy or colonoscopy) within the preceding 10 years. Prevalence was calculated for adults aged 50--75 years based on current U.S. Preventive Services Task Force recommendations.

http://www.cdc.gov/mmwr/preview/mmwrhtml/mm59e0706a1.htm?s_cid=mm59e0706...