Fig. 4
From: Gut microbiome structure in asylum seekers newly arrived in Italy from Africa

Gut microbiome structure of refugees compared to the Italian cohort. (a) A significantly segregation was found in the Principal Coordinates Analysis (PCoA) based on Bray–Curtis distances between the gut microbiome profiles of refugees and Italians17 (permutation test with pseudo-F ratio, p-value ≤ 0.001). The first and second principal components (PCoA1 and PCoA2) are plotted and the percentage of variance in the dataset explained by each axis is shown. Color legend in figure. (b) Boxplots of alpha diversity calculated at the genus level using the metrics “Shannon”, “Simpson”, “Inverted Simpson” and “Observed genera”. Significant p-values are indicated in the figure (p-values ≤ 0.001***, p-values ≤ 0.01**) (Wilcoxon rank-sum test corrected with FDR).