Figure 4.

Adjusted associations between microbiome and methamphetamine use, marijuana use, and receptive anal intercourse. Heat map showing adjusted associations between bacterial genera and methamphetamine use, marijuana use, or receptive anal intercourse following balancing of multiple confounders, using propensity scores. Red shading indicates positive associations, and blue shading indicates negative associations. Intensity of shading refers to the relative strength of the association determined by regression coefficients from 0-inflated negative binomial regression analysis. Only genera that were associated with a behavioral/substance use variable with an adjusted P value of <.05 are shown.