New era of colorectal cancer screening

Table 1 Summary of colorectal cancer screening guidelines from various organizations in the United States

	Joint guidelines	USPSTF	ACG	ACP
Flexible sigmoidoscopy	Every 5 yr	Every 5 yr, with high sensitivity FOBT every 3 yr	Every 5-10 yr	Every 5 yr
Colonoscopy	Every 10 yr	Every 10 yr	Every 10 yr	Every 10 yr
Barium enema	Every 5 yr	Not recommended	Not recommended	Every 5 yr
CT colonography	Every 5 yr	Insufficient evidence to recommend	Every 5 yr	Every 5 yr
gFOBT	Annual	Annual	Annual	Annual
FIT	Annual	Every year	Annual	Annual
sDNA	Uncertain	Insufficient evidence to recommend	Every 3 yr	Uncertain

USPSTF: United States Preventive Services Task Force; ACG: American College of Gastroenterology; ACP: American College of Physicians; FOBT: Fecal occult blood testing; CT: Computed tomographic; gFOBT: Guaiac-based fecal occult blood testing; FIT: Fecal immunochemical test; sDNA: Stool deoxyribonucleic acid.