Fig. 1
From: Associations between gut microbiota and osteoporosis or osteopenia in a cohort of Chinese Han youth

Venn diagram and alpha\beta diversity analysis at OTU’s level. (a) Venn diagram. (b–e) Between-group comparisons of the alpha diversity of gut microbiota (ACE, Chao1, Shannon, Simpson). The results are presented in a box diagram, and P values were calculated by using the Kruskal–Wallis test. (f) Principal coordinate analysis (PCoA) of bacterial beta diversity based on the Bray‒Curtis distance. P values were calculated by Adonis. test with 9999 permutations.