Table 1.

Characteristics of Patients at Baseline^*

	Glutamine (N=54)	Placebo (N=52)
Characteristic
Age--yr	32.4±9.5	30.9±7.1
Sex—no. (%)
Female	37 (68.5)	37 (71.2)
Male	17 (31.5)	15 (28.9)
Ethnic group-no. (%)
White	44 (81.4)	41 (78.9)
Black	5 (9.3)	6 (11.5)
Hispanic	3 (5.6)	3 (5.8)
Asian	2 (3.7)	2 (3.9)
Other	0	0
IBS-SS	301±54	302±58
Stool frequency (no./day)	5.4±2.3	5.3±2.2
Stool consistency (Bristol Stool Form scale)	6.5±0.6	6.6±0.6
Intestinal permeability (Lactulose/mannitol ratio)	0.11±0.03	0.11±0.04

^*Plus-minus values are means±SD. There were no significant differences between the two groups.

Patients in the glutamine group included 30 patients from Site 1 and 24 patients from Site 2.

Patients in the placebo group included 24 patients from Site 1 and 28 patients from Site 2.