Fig. 4From: Microbial-derived imidazole propionate links the heart failure-associated microbiome alterations to disease severityImidazole propionate in relation to severity and etiology of heart failure. Imidazole propionate serum levels (quartiles) are shown in relation to etiology of heart failure (A), percentage of LVEF (B), and serum levels of NT-ProBNP (C) as box plots and dot plots. Statistical significance was tested using Wilcoxon tests. For LVEF and NT-ProBNP, univariable and multivariable (age, sex, and BMI) linear regression model estimates for ImP are shown. LVEF, left ventricular ejection fraction; NT-proBNP, amino-terminal pro B-type natriuretic peptideBack to article page