The Impact of Colonoscopy Quality Control Table on Adenoma Detection Rates

Table 2

Colonoscopy indices and adenoma classification (cases, %).

	Preintervention group (,165)	Intervention group (,302)
Withdrawal time (minutes)	6.38 ± 3.19	8.27 ± 3.21	<0.001
Success rate of intubation	1,038 (89.1%)	1,204 (92.5%)	0.004
Adenomas per case	552 (0.47)	951 (0.73)	0.006
Detection rate of polyps	321 (27.6%)	424 (32.6%)	0.007
Detection rate of adenomas	188 (16.1%)	260 (20.0%)	0.014
Diameter < 5 mm	62 (33.3%)	123 (47.3%)	0.002
Flat adenomas	57 (30.3%)	113 (43.5%)	0.005
High-risk adenomas	35 (18.6%)	44 (16.9%)	0.642
Proximal adenomas	65 (34.6%)	120 (46.4%)	0.014