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. 2018 Aug 16;15(8):e1002630. doi: 10.1371/journal.pmed.1002630

Table 2. CRC screening participation in the ACCFR by age and risk category.

Age category 18-39 years 40-49 years 50-59 years 60-69 years ≥70 years
n % 95% CI n % 95% CI n % 95% CI n % 95% CI n % 95% CI
Risk category 1 (N=954)
At or slightly above average risk
    Never screened 111 98.3 (93-99.5) 185 93.9 (89.5-96.5) 108 63.1 (55.6-70.0) 194 64.2 (58.6-69.4) 113 66.1 (58.6-72.8)
    Some screening na na 11 6.4 (3.5-11.2) 12 3.9 (2.2-6.8) 4 2.4 (0.1-6.0)
    Appropriate screening na na 25 14.6 (10.0-20.7) 47 15.5 (11.8-20.1) 17 9.9 (6.2-15.4)
    Over-screening 2 1.7 (0.4-6.8) 12 6.1 (3.4-10.4) 27 15.9 (11.0-22.0) 49 16.4 (12.4-20.8) 37 21.6 (16.0-28.4)
Risk category 2 (N=1006)
Moderately increased risk
    Never screened 213 93.1 (88.8-95.6) 118 60.5 (53.4-67.1) 119 50.2 (43.8-56.5) 78 40.6 (33.8-47.7) 101 66.0 (58.1-73.1)
    Some screening na na 3 1.2 (0.4-3.8) 2 1 (0.2-4.0) 1 0.7 (0.09-4.5))
    Appropriate screening na na 115 48.6 (42.2-54.8) 112 58.4 (51.2-65.1) 51 33.3 (26.3-41.2)
    Over-screening 16 6.9 (4.3-11.1) 77 39.5 (32.8-46.5) 0 0 0
Risk category 3 (N=520)
Potentially high risk
    Never screened 56 91.8 (81.1-96.5) 75 65.2 (56.0-73.3) 69 50.3 (42.0-58.6) 50 41.6 (33.1-50.7) 39 44.8 (34.6-55.4)
    Some screening 1 1.6 (0.2-10.9) 8 6.9 (3.5-13.3) 3 2.19 (0.7-6.6) 13 10.8 (6.3-17.8) 13 14.9 (8.8-24.1)
    Appropriate screening 4 6.5 (2.4-16.3) 32 27.8 (20.3-36.7) 65 47.4 (39.1-55.8) 57 47.5 (38.6-56.4) 35 40.2 (30.4-50.9)
    Over-screening 0 0 0 0 0

CI: confidence interval