Table 1.
Cohort demographics and procedure details for the entire cohort, n = 1907, and patients found to have at least one adenoma on colonoscopy
| Total Cohort (N = 1907) |
Min. one adenoma (N = 467) |
Min. one proximal adenoma (N = 248) |
Min. one distal adenoma (N = 308) |
|
|---|---|---|---|---|
| Age, Median (IQR) years | 60 (55–65) | 61 (56–66) | 62 (56–67) | 61 (55–66) |
| Male Sex, n(%) | 769 (41.7) | 240 (51.4) | 128 (51.6) | 144 (52.0) |
| Indication, n(%) | ||||
| Family history | 1198 (62.8) | 263 (56.3) | 148 (59.68) | 138 (49.8) |
| Positive FOBT | 709 (37.2) | 204 (43.7) | 100 (40.3) | 139 (50.2) |
| Poor Bowel Preparation, n(%) | 27 (1.4) | 5 (1.1) | 3 (1.2) | 2 (0.7) |
| Colonoscopy Volumea, Median (IQR) procedures | 150 (53–215) | 166 (96–215) | 174 (147–215) | 157 (89–215) |
| Cecal intubation, n(%) | 1857 (97.4) | 559 (98.3) | 244 (98.4) | 273 (98.6) |
| Endoscopist Years of Practice, Median (IQR) years | 26 (22–38) | 23 (9–38) | 21 (9–32) | 24 (9–38) |
| Endoscopist Specialty, n(%) | ||||
| Gastroenterology | 1580 (83.0) | 356 (76.2) | 212 (76.5) | 181 (73.0) |
| Surgery | 327 (17.2) | 111 (23.8) | 65 (23.5) | 67 (27.0) |
aCase volume over a 6 month period (October 1st 2011 to March 31st 2012)
Note: IQR interquartile range