A Randomized Controlled Trial Evaluating a Low-Volume PEG Solution Plus Ascorbic Acid versus Standard PEG Solution in Bowel Preparation for Colonoscopy

Table 3

Results of the preparation and endoscopic findings.

Variable	PEG-ELS	PEG-ASC	value
Number of patients	50	50
Time to first defecation (min, mean ± SD)	64 ± 41	49 ± 33
Frequency of defecation (times, median, quartile)	8 (3–31)	7 (3–15)
Time to preparation (min, mean ± SD)	194 ± 69	172 ± 77
Elapsed time from last fluid intake to colonoscopy (min, mean ± SD)	217 ± 80	238 ± 81
Cecal intubation rate (, %)	50 (100)	50 (100)
Insertion time (min, median, quartile)	7.5 (3–30)	7 (3–21)
Feel of peristalsis (, %)	9 (18)	10 (20)
Qualitative preparation rating (, %)
Excellent	24	22
Good	17	24
Poor	7	2
Inadequate (additional treatment)	2	2
Successful bowel cleansing (, %)	41 (82)	46 (92)
Optimum visibility grade (0/1/2)	31/14/5	24/17/9
Amount of irrigation fluid ()
None	10	8
≤100 mL	32	24
100 mL<	8	18

Welch test; Mann-Whitney test; Chi-square test.