Table 3.

ADI scores and associations with IBS and IBSSS with comparisons between the groups

Variables	ADI	ADI	Statistics
	Test group	Validation group	p-value
	(IBS no/yes: no 63/25)	(IBS yes: 63)
IBS (no / yes)	−0.41 (2.75) / −1.64 (2.77) (p = 0.11)Ϯ	−1.68 (2.26)Ϯ	0.013*
IBSSS	rho = −0.304 (p = 0.004)	rho = −0.249 (p = 0.049)	0.86 #

ADI Alternative Dysbiosis Index, IBS Irritable Bowel Syndrome, IBSSS Irritable Bowel Severity Score System

*One-Way ANOVA with comparisons between the three groups

Ϯ Post hoc comparisons (Tukey) between the validation group and subjects with and without IBS in the test group were p = 1.00 and 0.016 respectively

# Univariate analysis of variance with ADI as the dependent variable and IBSSS and group as independent variables. The p-value is the interaction between IBSSS and group and indicates no significant difference between the correlations