Table 1. Characteristics of the Study Population.
| Characteristic | 2013-2019, No. (%) | |
|---|---|---|
| Repeated screening colonoscopy users | All screening colonoscopy users | |
| Sex | ||
| Men | 47 949 (39.9) | 565 864 (45.1) |
| Women | 72 349 (60.1) | 688 264 (54.9) |
| Age at (last) screening colonoscopy, y | ||
| 65-69 | 49 160 (40.9) | 511 708 (40.8) |
| 70-74 | 40 322 (33.5) | 388 840 (31.0) |
| 75-79 | 24 504 (20.4) | 265 127 (21.1) |
| ≥80 | 6312 (5.2) | 88 453 (7.1) |
| Most advanced finding at previous screening colonoscopy | ||
| Nonneoplastic finding | 34 741 (28.9) | NA |
| No finding | 85 557 (71.1) | |
| Years between first and second screening colonoscopy | ||
| 10 | 58 978 (49.0) | NA |
| 11 | 34 762 (28.9) | |
| 12 | 14 427 (12.0) | |
| 13 | 6786 (5.6) | |
| 14 | 3374 (2.8) | |
| 15 | 1522 (1.3) | |
| 16 | 449 (0.4) | |
Abbreviation: NA, not applicable.