Table 2.

Correlation analyses between relative abundance of bacterial taxa at different taxonomic levels and glucose and lipid metabolism parameters (n = 6–8/group).

Metabolic index	Taxonomic level	Specific Taxon	r	p-value	FDR
AUC	phylum	Proteobacteria	0.59	0.0009	0.0033
	class	Deltaproteobacteria	0.59	0.0010	0.0028
	family	Desulfovibrionaceae	0.60	0.0008	0.0044
	family	Porphyromonadaceae	−0.52	0.0043	0.0095
	genus	Desulfovibrio	0.61	0.0005	0.0055
Insulin	phylum	Proteobacteria	0.50	0.0067	0.0082
	class	Clostridia	−0.52	0.0044	0.0081
	class	Deltaproteobacteria	0.51	0.0057	0.0090
	family	Desulfovibrionaceae	0.53	0.0041	0.0090
	family	Porphyromonadaceae	−0.58	0.0013	0.0143
	family	Rikenellaceae	−0.53	0.0036	0.0099
	genus	Alistipes	−0.53	0.0034	0.0125
	genus	Rikenella	−0.54	0.0029	0.0160
	genus	Desulfovibrio	0.51	0.0061	0.0084
	species	Bacteroides_acidifaciens	0.38	0.0460	0.0506
HOMA-IR	phylum	Proteobacteria	0.58	0.0013	0.0024
	class	Clostridia	−0.47	0.0108	0.0132
	class	Deltaproteobacteria	0.60	0.0007	0.0026
	family	Desulfovibrionaceae	0.62	0.0005	0.0055
	family	Porphyromonadaceae	−0.62	0.0005	0.0028
	family	Rikenellaceae	−0.50	0.0071	0.0111
	genus	Alistipes	−0.49	0.0083	0.0114
	genus	Rikenella	−0.59	0.0010	0.0022
	genus	Desulfovibrio	0.59	0.0009	0.0025
	species	Bacteroides_acidifaciens	0.46	0.0130	0.0143
TC	phylum	Proteobacteria	0.45	0.0161	0.0443
	class	Deltaproteobacteria	0.53	0.0037	0.0407
	family	Desulfovibrionaceae	0.51	0.0059	0.0325
	genus	Rikenellaceae_RC9_gut_group	−0.39	0.0382	0.0840
	genus	Desulfovibrio	0.46	0.0136	0.0499

Spearman's correlations coefficients are listed for each taxonomy level. AUC, area under the curve; HOMA-IR, the homeostasis model assessment of insulin resistance; TC, total cholesterol; TG, triacylglycerol.