Impact of simethicone on bowel cleansing during colonoscopy in Chinese patients

Table 1 Baseline characteristics between the 4 L polyethylene glycol and 3 L polyethylene glycol plus simethicone groups

Variable	4-P (n = 145)	3-PS (n = 146)	P value1
Age, yr, (mean ± SD)	48.3 ± 12.1	47.9 ± 13.5	0.79
Male, n (%)	74 (51.0)	70 (47.9)	0.60
Diabetes, n (%)	12 (8.3)	9 (6.2)	0.49
Indication for colonoscopy, n (%)
Rectal bleeding	23 (15.9)	27 (18.5)	0.55
Diarrhea	22 (15.2)	28 (19.2)	0.37
Constipation	18 (12.4)	14 (9.6)	0.44
Abdominal discomfort	46 (31.7)	34 (23.3)	0.11
Surveillance/screening	20 (13.8)	30 (20.5)	0.13
Polypectomy/resection	12 (8.3)	10 (6.8)	0.65
Other	4 (2.7)	3 (2.1)	0.70

¹Statistical significance between groups was tested by Student t test or χ² analysis. 4-P: 4 L polyethylene glycol; 3-PS: 3 L polyethylene glycol plus simethicone.