Risk category | Criteria | Age to commence screening | Screening Test | Screening frequency (years) |
---|---|---|---|---|
Average-risk (Age-only) | Age 50–74 years | 50 | FOBT | 2 |
Sigmoidoscopy | 5 | |||
Colonoscopy | 10 | |||
Moderate-risk (FamilyHx) | Family history of CRC in 1 first-degree relative ≥60 years | 40 | FOBT | 2 |
Sigmoidoscopy | 5 | |||
Colonoscopy | 10 | |||
Family history of CRC in 1 first-degree relative < 60 years | 40b | Colonoscopy | 5 | |
Family history of CRC in 2 or more relatives | ||||
High-risk (PersonalHx) | Personal history of a bowel conditionc | 40d | Colonoscopy | 5 |
Highest-risk (Family/PersonalHx) | Personal history of a bowel condition and family history of CRC |