Fig. 2: Fecal microbiota profiles of subjects with and without POAF.

a, b Differences in alpha-diversity of gut microbiota between POAF and non-POAF patients, including Shannon index (diversity) and Chao 1 index (microbial community richness). c The β diversity of POAF and non-POAF patients based on the PCoA analysis. d Differentiated microbiome composition at phylum level in POAF and non-POAF fecal samples. e Relative abundance comparison at genus level between the POAF and non-POAF patients, the box plot indicates the mean proportions, the bar plot indicates the proportion differences between two groups.