Prevention of Interval Colorectal Cancers: What Every Clinician Needs to Know  Swati G. Patel, Dennis J. Ahnen  Clinical Gastroenterology and Hepatology  Volume 12, Issue 1, Pages 7-15 (January 2014) DOI: 10.1016/j.cgh.2013.04.027 Copyright © 2014 AGA Institute Terms and Conditions

Figure 1 Incidence/mortality of CRC and screening uptake rates over time. CRC incidence/mortality reported as rates among adults age 50 years or older (Surveillance, Epidemiology and End Results database) to reflect the screening population. To cover the entire timeline, CRC screening test uptake rates derived from the National Health Information Survey were used for data before 1992, and Behavioral Risk Factor Surveillance System data were used for 1997 to 2010. The surveys did not differentiate between flexible sigmoidoscopy and colonoscopy for lower endoscopy; however, a sharp increase is almost entirely the result of an increased use of colonoscopy. Modified with permission from Patel and Ahnen.82 Clinical Gastroenterology and Hepatology 2014 12, 7-15DOI: (10.1016/j.cgh.2013.04.027) Copyright © 2014 AGA Institute Terms and Conditions