Table 3.
CRC screening participation by age and risk subcategories
| 18–39 (n=572)
|
40–49 (n=371)
|
50–59 (n=522)
|
60–69 (n=185)
|
≥70 (n=237)
|
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | % | 95% CI | n | % | 95% CI | n | % | 95% CI | n | % | 95% CI | n | % | 95% CI | |
| “At average risk” | |||||||||||||||
| No screening | 256 | 99.2 | (97.0–99.8) | 237 | 96 | (92.6–97.8) | 299 | 91.4 | (87.9–94.0) | 84 | 85.7 | (77.3–91.4) | 96 | 89.7 | (82.4–94.2) |
| Some but less than appropriate screening | NA | NA | 8 | 2.4 | (1.2–4.8) | 5 | 5.1 | (2.1–11.7) | 5 | 4.7 | (2.0–10.7) | ||||
| Appropriate screening | NA | NA | 3 | 0.9 | (0.3–2.8) | 1 | 1 | (0.1–6.9) | 0 | ||||||
| Over screening | 2 | 0.8 | (0.2–3.0) | 10 | 4 | (2.2–7.4) | 17 | 5.2 | (3.3–8.2) | 8 | 8.2 | (4.1–15.5) | 6 | 5.6 | (2.5–11.9) |
| “Slightly above average risk” | |||||||||||||||
| No screening | 300 | 95.5 | (92.6–97.3) | 95 | 76.6 | (68.4–83.2) | 140 | 71.8 | (65.1–77.7) | 65 | 74.7 | (64.6–82.7) | 111 | 85.4 | (78.2–90.5) |
| Some but less than appropriate screening | NA | NA | 2 | 1 | (0.3–4.0) | 1 | 1.1 | (0.2–7.7) | 8 | 6.2 | (3.1–11.8) | ||||
| Appropriate screening | NA | NA | 1 | 0.5 | (0.1–3.6) | 0 | 0 | ||||||||
| Over screening | 14 | 4.5 | (2.7–7.4) | 29 | 23.4 | (16.8–31.6) | 52 | 26.7 | (20.9–33.3) | 21 | 24.1 | (16.3–34.2) | 11 | 8.5 | (4.7–14.6) |
| Overall | |||||||||||||||
| No screening | 556 | 97.2 | (95.5–98.3) | 332 | 89.5 | (85.9–92.2) | 439 | 84.1 | (80.7–87.0) | 149 | 80.5 | (74.2–85.6) | 207 | 87.3 | (82.5–91.0) |
| Some but less than appropriate screening | NA | NA | 10 | 1.9 | (1.0–3.5) | 6 | 3.2 | (1.5–7.0) | 13 | 5.5 | (3.2–9.2) | ||||
| Appropriate screening | NA | NA | 4 | 0.8 | (0.3–2.0) | 1 | 0.5 | (0.1–3.7) | 0 | ||||||
| Over screening | 16 | 2.8 | (1.7–4.5) | 39 | 10.5 | (7.8–14.1) | 69 | 13.2 | (10.6–16.4) | 29 | 15.7 | (11.1–21.7) | 17 | 7.2 | (4.5–11.2) |
NA = not applicable, given the guidelines recommend no screening for those under age 50 years,