TABLE 2.

Comparison of phylotype coverage and diversity estimation of the 16S rRNA gene libraries at 97% similarity in H. pylori positive group and H. pylori negative group.

Coverage and diversity	H. pylori positive	H. pylori negative	P-value
Good’s coverage (%)	99.900 ± 0.033	99.920 ± 0.024	0.156
ACE	154.854 ± 25.133	179.650 ± 28.087	0.042*
Chao1	156.845 ± 25.991	181.180 ± 29.852	0.055
Shannon	2.213 ± 0.380	2.648 ± 0.331	0.013*
Simpson	0.222 ± 0.087	0.165 ± 0.044	0.098
Heip evenness	0.451 ± 0.065	0.518 ± 0.051	0.02*

*P < 0.05.