Randomized Controlled Trial of Polyethylene Glycol versus Oral Sodium Phosphate for Bowel Preparation in Unsedated Colonoscopy

Table 2

Clinical data relating to colonoscopy tube insertion.

	PEG group	OSP group	value
Bowel preparation			0.001
Poor	1 (0.3)	0
Fair	20 (6.8)	10 (3.4)
Good	115 (39.2)	79 (27.0)
Excellent	157 (53.6)	204 (69.6)
Cecal intubation			0.218
Yes	292 (99.7)	288 (98.3)
No	1 (0.3)	5 (1.7)
Cases requiring additional water to lubricate the lumen	56 (19.1)	213 (72.7)	≤0.001
Difficulty of colonoscopic insertion			0.036
Easy	225 (76.8)	197 (67.2)
Moderately difficult	58 (19.8)	81 (27.6)
Difficult	10 (3.4)	15 (5.1)
Insertion time (min)	10.0 (8.0-14.0)	12.0 (9.0-15.0)	0.002
Visual analogue scale			≤0.001