Parameter | Patients, n (%) |
---|---|
n = 1606 | |
Age, y | |
Mean (SD) | 54.4 (13.9) |
Range | 18–89 |
Sex | |
Male | 561 (34.9) |
Female | 1003 (62.5) |
Not reported | 42 (2.6) |
Geographic area | |
Northeast | 390 (24.3) |
Midwest | 227 (14.1) |
South | 748 (46.6) |
West | 241 (15.0) |
Family history of colon cancer | |
Yes | 399 (24.8) |
No | 1199 (74.7) |
Not reported | 8 (0.5) |
First (initial/baseline) colonoscopy | |
Yes | 593 (36.9) |
No | 1005 (62.6) |
Not reported | 8 (0.5) |
Indication for colonoscopy | |
Diagnostic | 557 (34.7) |
Routine screening | 1041 (64.8) |
Not reported | 8 (0.5) |