Table 2. Maintenance laxative type and dose by group.

Age	Laxative	G3-a (n=170)	G3-b (n=62)	G3-c (n=101)	p-value
<8 yr	Lactulose (mL/kg/d)	n=62	n=1	n=12
		2.00 (0.82)	2.50 (0.00)	1.63 (0.65)	0.1654
	PEG 4000 (g/kg/d)	n=77	n=50	n=57
		0.67 (0.26)	0.68 (0.31)	0.62 (0.21)	0.0176
8-12 yr	Lactulose (mL/kg/d)	n=5	n=1	n=5
		1.10 (0.25)	1.30 (0.00)	0.93 (0.32)	0.3093
	PEG 4000 (g/kg/d)	n=16	n=7	n=22
		0.56 (0.22)	0.47 (0.19)	0.46 (0.14)	0.1596
>12 yr	PEG 4000 (g/kg/d)	n=10	n=3	n=5
		0.41 (0.11)	0.39 (0.21)	0.35 (0.23)	0.9567

G3-a: infrequent bowel movement without fecal soiling group, G3-b: infrequent bowel movement with fecal soiling group, G3-c: fecal soiling group.