Prospective randomized comparison of oral sodium phosphate and polyethylene glycol lavage for colonoscopy preparation

Table 2 Demographic characteristics and prior bowel preparation experience

Variables	NaP (n = 40)			PEG (n = 40)
		N	%	N	%	P1
Gender						0.178
Male		18	45.0	25	62.5
Female		22	55.0	15	37.5
Age						0.948
Mean±SD2		52.2±13.6		52.4±12.6
Median (range)		51.9 (25.6-75.6)		54.2 (23.1-77.3)
Frame size						0.571
Small (BMI<21)		6	15.0	6	15.0
Medium (BMI:21–24)		30	75.0	26	65.0
Large (BMI>24)		4	10.0	8	20.0
Concomitant edication		4	10.0	5	12.5	1.000
Anti-hypertensive		1	2.5	4	10.0
Others		3	7.5	4	10.0
Previous bowel preparation						1.000
		13	32.5	14	35.0

¹Fisher’s exact test or 2-sample Student’s t-test, when appropriate.

²SD: standard deviation.