Table 2 Clinical characteristics and colonoscopy findings of the study cohort (N = 5,137)
All (N = 5,137) | Women (n = 2,821) | Men (n = 2,316) | |
|---|---|---|---|
Age group in years, n (%) | |||
50–54 | 1,764 (34.3) | 1,016 (36.0) | 748 (32.3) |
55–59 | 1,404 (27.3) | 731 (25.9) | 673 (29.1) |
60–66 | 1,330 (25.9) | 734 (26.0) | 596 (25.7) |
>66 | 639 (12.4) | 340 (12.0) | 299 (12.9) |
Family History of CRC, n (%) | |||
None | 4,648 (90.5) | 2,526 (89.5) | 2,122 (91.6) |
1 first-degree relative ≥ 60 years old | 381 (7.4) | 222 (7.9) | 159 (6.9) |
1 first-degree relative < 60 years old | 83 (1.6) | 55 (2.0) | 28 (1.2) |
2 first-degree relatives | 25 (0.5) | 18 (0.6) | 7 (0.3) |
Smoking history in pack-years, n (%) | |||
None | 2,849 (55.5) | 1,617 (57.3) | 1,232 (53.2) |
<10 | 1,342 (26.1) | 779 (27.6) | 563 (24.3) |
10–19 | 419 (8.2) | 204 (7.2) | 215 (9.3) |
≥20 | 527 (10.3) | 221 (7.8) | 306 (13.2) |
BMI in kg/m2, n (%) | |||
<25 | 1,772 (34.5) | 1,226 (43.5) | 546 (23.6) |
25-29 | 2,149 (41.8) | 984 (34.9) | 1,165 (50.3) |
≥30 | 1,216 (23.7) | 611 (21.7) | 605 (26.1) |
Most advanced finding at colonoscopy, n (%) | |||
None | 3,232 (62.9) | 1,943 (68.9) | 1,289 (55.7) |
Hyperplastic polyp | 561 (10.9) | 305 (10.8) | 256 (11.0) |
Non-advanced neoplasia | 993 (19.3) | 427 (15.1) | 566 (24.4) |
Advanced neoplasia | 351 (6.8) | 146 (5.2) | 205 (8.9) |