Fig. 2

AxSpA measures in relation to dysbiosis index levels. Distributions of measures of disease activity, physical function, mobility, and pain among axSpA patients (nr-axSpA and AS combined) with different levels of dysbiosis index (DI) score 1–5. Number of analyzed subjects per group presented above the x-axes (DI 4 and 5 combined into one group due to too few cases). P values for overall between-group differences by one-way ANOVA (or Kruskal-Wallis test ^†) displayed in the graphs. *Bootstrapped 95% CI. ANOVA analysis of variance, AS ankylosing spondylitis, axSpA axial spondyloarthritis, ASDAS-CRP ankylosing spondylitis disease-activity score using C-reactive protein, BASDAI Bath ankylosing spondylitis disease activity index, BASFI Bath ankylosing spondylitis functional index, BASMI Bath ankylosing spondylitis metrology index, CI confidence interval, CRP C-reactive protein, DI dysbiosis index, nr-axSpA non-radiographic axial spondyloarthritis, VAS visual analog scale