Table 4.
A summary of existing recommendations in different guidelines for CRC screening in people with average risk
| Guideline | Age (year) Start of screening | Age (year) end of screening | Colonoscopy | Flexible Sigmoidoscopy | CT-Colonography | FIT | g-FOBT | Fecal DNA Test |
|---|---|---|---|---|---|---|---|---|
| ACG[21,33] | 50 (45 for African-Americans) | 75 | every 10 years | Every 5 to 10 years | Every 5 years | yearly | Is not done (instead of it, FIT, Hemoccult Sensa and fecal DNA are recommended) | Every 3 years + yearly Hemoccult Sensa |
| ACS[1] | 45 (qualified) 50 (strong) | 85 | Every 10 years | Every 5 years | Every 5 years | yearly | yearly | Every 3 years |
| ACP[4] | 50 | 75 | Every 10 years | Every 10 years + FIT every 2 years | Not recommended | Every 2 years | High sensitivity FOBT every 2 years | Not recommended |
| ASGE[5] | 50 | - | Every 10 years | Every 5 years | Not recommended | yearly | yearly | Not recommended |
| MSTF[31] | 50 (45 for African-Americans) | 75 | Every 10 years | Every 10 years | Every 5 years | yearly | - | Every 3 years + yearly FIT |
| USPSTF[6] | 50 | 75 | Every 10 years | Every 5 years + high sensitivity FOBT every 3 years | Lack of evidence | yearly | High sensitivity FOBT (SENSA) yearly | Lack of evidence |
| CAG[11] | 50 | 75 | Not recommended | Every 10 years or more | Not recommended | Not recommended | High sensitivity FOBT yearly or every 2 yeas | Not recommended |
| CTFPHC[9] | 50-59 (slightly recommended) 60-69 (highly recommended) | 74 | Not recommended | Every 10 years | Not recommended | Every 2 years | Every 2 years | Not recommended |
| CEWG[3] | 50 | 75 | Every 10 years | Every 5 years | - | Yearly or every 2 years | Yearly or every 2 years | - |
| Australia[19] | 50 | 75 | Not recommended | Not recommended | - | Every 2 years | - | Not recommended |
| Saudi Arabia[34] | 45 | 70 | Every 10 years | Every 3 years (or every 5 years + yearly FIT) | Minimum recommended method | yearly | yearly | - |
ACG: American College of Gastroenterology, ACS: American Cancer Society, ACP: American College of Physicians, ASGE: American Society for Gastrointestinal Endoscopy, MSTF: U.S. Multi-Society Task Force, USPSTF: U.S. Preventive Services Task Force, CAG: Canadian Association of Gastroenterology, CTFPHC: Canadian Task Force on Preventive Health Care, CEWG: Cancer Expert Working Group