Table 1.

Alpha diversity based on operational taxonomic units (OTUs).

Group	Number of valid sequences	Number of OTUs attributable to known classification units (%)	Alpha diversity
			ACE index	Chao1 index	Shannon index	Simpson index
Control	329741	100	917.08	911.31	5.75	0.927
GD	328482	100	792.10	790.26	5.20	0.889

GD, Graves’ disease.