Preassessment Interview Improves the Efficacy and Safety of Bowel Preparation for Colonoscopy

Table 3

Reasons for incomplete colonoscopy, according to risk group.

		Reasons for incomplete colonoscopy						Total
		Technically difficult	Impassable stricture	Poor bowel preparation	Procedure abandoned	Pain	Colitis
Group stratification	Group 1	4	1	9	0	0	1	15
	Group 2	11	7	18	2	3	0	41
	Group 3	21	17	54	0	4	0	96
Total		36	25	81	2	7	1	152