Randomized, double-blinded, placebo-controlled trial evaluating simethicone pretreatment with bowel preparation during colonoscopy

Table 4 Demographics, Intraluminal Bubble Scale, and Boston Bowel Preparation Scale characteristics, n (%)

	Simethicone	Placebo	P-value
Baseline characteristics
Gender			0.436
Female	50 (59.5)	45 (53.6)
Male	34 (40.5)	39 (46.4)
mean age (yr ± SD)	59.6 ± 14.0	54.0 ± 16.4	0.019
Median age (yr)	63 (IQR; 51-70)	57 (IQR; 43-68)	0.033
Outcomes
Intraluminal Bubbles Scale			< 0.001
1	73 (86.9)	46 (54.8)
2	7 (8.3)	18 (21.4)
3	2 (2.4)	13 (15.5)
4	2 (2.4)	7 (8.3)
Boston Bowel Prep Scale			0.832
3	2 (2.4)	1 (1.2)
4	0 (0.0)	1 (1.2)
5	2 (2.4)	1 (1.2)
6	26 (31.0)	31 (36.9)
7	13 (15.5)	13 (15.5)
8	9 (10.7)	9 (10.7)
9	32 (38.1)	27 (32.1)
Missing	0 (0.0)	1 (1.2)

IQR: Inter quartile range. The P-value for median calculated using Wilcoxon rank-sum test.