Table 1.

The best cut off points for selected microbial candidates of H. pylori-negative gastritis.

OTU	Area	Lower Bound	Upper Bound	Cut off Value	Sensi-Tivity	Speci-Ficity	p Value
Streptococcus 1078207	0.74	0.58	0.9	3099	0.64	0.28	0.011
Streptococcus 989579	0.68	0.53	0.82			-	NS
Streptococcus 967427	0.77	0.6	0.93	138	0.73	0.27	0.005
Streptococcus 526131	0.74	0.59	0.88	90.5	0.73	0.27	0.013
Streptococcus 1010458	0.73	0.57	0.89	4.5	0.64	0.34	0.015
Streptococcus 525966	0.83	0.72	0.94	64.5	0.82	0.19	0.001
Fusobacterium 938948	0.73	0.55	0.91	177.5	0.73	0.31	0.014
Veillonella 511378	0.78	0.63	0.92	46	0.73	0.27	0.003
Prevotella pallens 705241	0.68	0.49	0.88			-	NS
Haemophilus parainfluenzae 4320756	0.71	0.54	0.89	6.5	0.73	0.27	0.025
Helicobacter pylori 10952	0.75	0.65	0.86	164.5	0.36	0.7	0.008

NS: p value is not statistically significant (p > 0.05).