| Variable | Screening test, % of patients | ||
|---|---|---|---|
| FOBT | FS or colonoscopy | Either or both | |
| Within recommended age range (50–74 yr) | |||
| 50–54 | 21.2 | 27.0 | 41.8 |
| 55–59 | 29.4 | 36.4 | 54.7 |
| 60–64 | 34.7 | 40.7 | 61.0 |
| 65–69 | 34.6 | 43.5 | 62.5 |
| 70–74 | 36.4 | 46.5 | 65.3 |
| Male | 30.0 | 37.6 | 54.9 |
| Female | 30.2 | 36.9 | 55.5 |
| Outside recommended age range, yr | |||
| 40–44 | 5.1 | 12.3 | 15.6 |
| 45–49 | 7.2 | 16.7 | 21.5 |
| 75–79 | 34.0 | 43.0 | 60.4 |
| ≥ 80 | 23.4 | 36.8 | 49.7 |
| Male | 12.8 | 20.1 | 27.5 |
| Female | 11.3 | 22.3 | 28.6 |
*Fecal occult blood test (FOBT) within the preceding 2 years, or flexible sigmoidoscopy (FS) or colonoscopy within the preceding 10 years.