Relative abundances of specific genera associate with markers of neutrophil trafficking. (A) List of the 11 bacterial genera with prevalence >25% and significant association (FDR-corrected P < .05) throughout the induction period with maximum level of the chemokine CXCL8. The relative abundance of Enterococcus was positively associated with CXCL8, whereas the relative abundance of all other genera was inversely associated with CXCL8. (B) Bacterial genera with a prevalence of >25% and significant association (FDR-corrected P < .05) during induction treatment with maximum levels of CXCL8 and with groups: patients dichotomized according to their individual maximum level of CXCL8. Dots represent mean values and shaded color bands represent the 95% CI. P values correspond to generalized linear mixed models and ∗ represents FDR-corrected P values.