Table 1.

Summary of Screening Recommendations for Average-Risk Individuals

Test	USPSTF	ACS	ACG
ACG, American College of Gastroenterology; ACS, American Cancer Society; USPSTF, U.S. Preventive Services Task Force.
Fecal occult blood testing (FOBT)	At 50 and then annually	At 50 and then annually	At 50 and then annually
Flexible sigmoidoscopy	Periodically or in combination with FOBT	At 50 and every 5 years	At 50 and every 5 years in combination with FOBT, as an alternative to colonoscopy
Double-contrast barium enema	No recommendation	At 50 and every 5 years, as an alternative to colonoscopy	No recommendation
Colonoscopy	No recommendation	At 50 and every 10 years	At 50 and every 10 years