Table 1.

Subject Demographics and IBS Subtypes

	Fiber (n = 37)	Placebo (n = 47)	P value
Demographics
Age, y	13.1 ± 0.4a	13.5 ± 0.4	.50
Female	19 (51%)b	29 (62%)	.38
Race			.26
White	26 (70%)	25 (53%)
Black	4 (11%)	7 (15%)
Asian	0	2 (4%)
Hispanic	6 (16%)	13 (28%)
Insurance type			.22
PPO/HMO	33 (89%)	34 (73%)
Medicaid/CHIP	4 (11%)	10 (21%)
Other	0	2 (4%)
None	0	1 (2%)
IBS subtype			.32
Constipation	18	23
Unsubtyped	18	18
Mixed	0	2
Diarrhea	1	4

CHIP, children’s health insurance plan; HMO, health maintenance organization; PPO, preferred provider organization.

^aMeans ± SEM.

^bPercentage.