Table 2. Diversity evaluation of gut microbiota in two groups.

Group	Effective reads mean, min ∼max	Coverage mean, min ∼max	OTU mean ± SD	ACE mean ± SD	Chao1 mean ± SD	Simpson mean ± SD	Shannon mean ± SD
Case	72799, 45914∼105299	0.9994, 0.9988∼0.9996	244.8 ± 30.6	279.8 ± 28.3	282.1 ± 29.0	0.9 ± 0.1	4.5 ± 0.7
Control	72448, 55904∼76791	0.9994, 0.9991∼0.9996	228.3 ± 28.7	275.9 ± 30.3	275.3 ± 34.3	0.9 ± 0.1	4.5 ± 0.6