Figure 7: A correlation heatmap is used to represent significant statistical correlation values (r) between perturbed gut microbiota genera and altered urinary metabolites in antibiotic group and control group.

Blue squares indicate significant positive correlations (r > 0.5, p < 0.05), white squares indicate nonsignificant correlations (p > 0.05), and red squares indicate significant negative correlations (r < −0.5, p < 0.05).