Nutrient drink test: A promising new tool for irritable bowel syndrome diagnosis

Table 1 Baseline abdominal symptoms in control subjects and IBS patients

	Control	IBS	P value
GER	0.4 ± 0.7	1.4 ± 1.4	0.05
Abdominal pain	0.4 ± 0.5	3.4 ± 1.7	0.001
Dyspepsia	0.7 ± 0.5	2.9 ± 1.4	0.001
Diarrhea	0.3 ±0.7	3.1 ± 1.9	0.001
Constipation	0.2 ± 0.4	2.4 ± 1.5	0.001
IBSSS score	37.3 ± 36.0	275.3 ± 115.6	0.001

Scores of symptoms in the 4 wk prior to drink testing, derived from the screening questionnaires, expressed as coefficients of each domain in the GSRS and the sum of IBSSS questionnaire variables (mean ± SD). GSRS: Gastrointestinal symptoms rating scale; GER: Gastro-esophageal reflux; IBSSS: Irritable bowel severity scoring system.