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.