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Table 1 Cohort demographics and procedure details for the entire cohort, n = 1907, and patients found to have at least one adenoma on colonoscopy

From: Variable Endoscopist performance in proximal and distal adenoma detection during colonoscopy: a retrospective cohort study

 

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)

  1. aCase volume over a 6 month period (October 1st 2011 to March 31st 2012)
  2. Note: IQR interquartile range