Effect of Colonoscopy Volume on Quality Indicators

Table 2

Quality indicators and their relationship to annual colonoscopy volume quintiles.

	Quintile 1	Quintile 2	Quintile 3	Quintile 4	Quintile 5	value
	0–149	150–249	250–301	302–530	>530
Colonoscopy completion (%)	80.7	90.9	90.5	93.9	93.3	<0.001
Polyp detection (%)	25.1	25.7	30.4	39.5	40.9	<0.001
Adenoma detection (%)	16.0	16.1	19.5	20.1	23.7	<0.001
Perforation rate (%)	0.05	0	0.2	0.2	0.2	0.716
Postpolypectomy bleeding (%)	0	0.3	0	0.05	0.02	0.235