Table 4.

Subgroup analysis for screening colonoscopy indication

Reasons for colonoscopy	Single Dose (n=120)			Split Dose (n=120)
	Adequate Bowel Preparation		P	Adequate Bowel Preparation		P
	Yes n (%)	No n (%)		Yes n (%)	No n (%)
History of polyps	1 (25.0)	3 (75.0)	0.148	11 (84.6)	2 (15.4)	0.632
Screening (no personal history of polyps or cancer)	12 (70.6)	5 (29.4)	0.592	15 (93.8)	1 (6.3)	1.000
Change in bowel habits	26 (60.5)	17 (39.5)	0.844	34 (79.1)	9 (20.9)	0.013
Inflammatory bowel disease	19 (82.6)	4 (17.4)	0.032	17 (94.4)	1 (5.6)	0.689
Rectal bleeding	10 (52.6)	9 (47.4)	0.439	18 (90.0)	2 (10.0)	1.000
Cancer surveillance (follow-up evaluation)	2 (50.0)	2 (50.0)	0.630	5 (100)	0 (0)	1.000
Anemia	4 (44.4)	5 (55.6)	0.293	8 (100)	0 (0)	0.597
Others	10 (62.5)	6 (37.5)	1.000	19 (86.4)	3 (13.6)	0.704