Fig. 2

The gut microbiota differences in OA and KBD groups based on the metagenomic sequencing data. a Differentially expressed unigenes between OA and KBD groups. b Alpha diversity differences between the OA and KBD groups were estimated by the observed species, Shannon, Simpson, and Chao1 indices. *P<0.05. OA, patients with OA group; KBD, patients with KBD group. c The PCoA analysis based on the Bray-Curtis distance matrix between the OA and KBD groups at the species level (P = 0.001). d Component proportions of phylum in each group; n = 32 for the OA group and n = 32 for the KBD group based on the metagenomic sequencing data