Electrolyte changes after bowel preparation for colonoscopy: A randomized controlled multicenter trial

Table 1 Characteristics of all subjects and outcomes n (%)

	PEG-Asc	4-L PEG	P value
n	112	114
Age (yr, mean ± SD)	56 ± 10	55 ± 12	0.525
Sex (male)	54.50%	64%	0.143
Previous colonoscopy	55 (49.1)	58 (50.9)	0.790
Complete bowel preparation	112 (100)	111 (97.4)	0.247
Morning colonoscopy	68 (60.7)	54 (47.4)	0.044
Indications of colonoscopy			0.515
Colon cancer screening	65 (58)	71 (62.3)
Functional GI symptoms	47 (42)	43 (37.7)
Polyp detection rate
Polyp ≥ 1	58 (51.8)	53 (46.5)	0.506
Procedure time
Insertion time (min, mean ± SD)	5.8 ± 4.5	5.8 ± 3.3	0.938
Withdrawal time (min, mean ± SD)	9.4 ± 5.5	8.4 ± 2.4	0.420

PEG-Asc: Low-volume (2-L) polyethylene glycol solution + ascorbic acid 4.7 g; 4-L PEG: High-volume (4-L) polyethylene glycol solution; GI: Gastrointestinal.