Table 1 Risk Factors, Risk Category and Screening Recommendation
No personal hx of CRC or polyps & no FDR with CRC or polyps | Average Risk | Colonoscopy every 10 yrs beginning age 50 (or 45 if black) |
|---|---|---|
1 FDR with CRC or polyps age ≥ 60 | Low Risk | Colonoscopy every 10 yrs beginning age 50 (or 45 if black) |
Personal history of CRC or adenomatous polyps FDR with CRC or adenomatous polyps < 60 yrs or in ≥ 2 FDR at any age | Medium Risk | Colonoscopy at an interval dependant on size, number and pathology of previous polyps Colonoscopy every 5 years beginning age 40 or 10 years before youngest age of relative affected, whichever is earlier |
Combinations of 3 individuals with CRC which may include self, and ≥ 1 FDR and/or SDR (same side of family) | High Risk | Suspicious for hereditary CRC syndrome. Risk assessment by specialists skilled in genetic assessments. Early onset colonoscopy ± genetic testing |