Figure 1.
Cohort construction and microbiota characteristics of three IBS subtypes. (a) Conceptual outline of cohort construction and classification; (b) Principal Coordinates Analysis of gut microbiota composition of patients with different IBS subtypes by Bray-Curtis dissimilarities, the difference among IBS subtypes was assess by PERMANOVA test. (c) Diversity (Shannon Index) and richness of gut microbiota of IBS patients and non-IBS controls in different subtypes, * p < .05, ** p < .01, *** p < .001, **** p < .0001; (d) Principal Coordinates Analysis of gut microbiota composition of patients with different IBS subtypes and corresponding non-IBS controls by Bray-Curtis dissimilarities, the difference among IBS subtypes was assess by PERMANOVA test.