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

Table 2 Baseline psycho-social and quality of life markers in control subjects and IBS patients

	Control	IBS	P value
Somatization1	0.4 ± 0.4	1.8 ± 1.1	0.001
Obsession1	0.3 ± 0.3	1.2 ± 0.7	0.004
Interpersonal sensitivity1	0.2 ± 0.3	0.7 ± 0.7	0.05
Depression1	0.3 ± 0.4	1.5 ± 1.3	0.01
Anxiety1	0.2 ± 0.3	1.1 ± 0.8	0.005
Hostility1	0.2 ± 0.2	0.5 ± 0.6	0.09
Phobic anxiety1	0.1 ± 0.2	0.8 ± 1.0	0.05
Paranoid ideation1	0.2 ± 0.2	0.6 ± 0.5	0.025
Psychoticism1	0.1 ± 0.2	0.5 ± 0.5	0.013
Positive global symptoms1	17.2 ± 13.3	46.0 ± 21.7	0.002
Distress index1	1.2 ± 0.2	1.9 ± 0.6	0.002
HAD anxiety	3.6 ± 2.0	11.1 ± 4.8	0.000
HAD depression	1.5 ± 1.5	6.7 ± 5.4	0.01
HAD score	5.1 ± 2.6	17.8 ± 9.6	0.000
Physical score2	55.0 ± 5.0	37.4 ± 11.7	0.000
Mental score2	53.9 ± 6.0	42.3 ± 11.6	0.001

Psycho-social and quality of life data for the 4 wk prior to drink test, derived from the coefficient of each domain (¹SCL-90-R; HAD; and

²SF-12). Every questionnaire has its own statistical tools to evaluate the outcomes[18-20]. SCL-90-R: Symptom checklist-90-R; HAD: Hospital anxiety and depression scale; SF-12: Short form 12; IBS: Irritable bowel syndrome.