Table 2.

Comparison of phylotype coverage and diversity estimation of the 16S rRNA gene libraries at 97% similarity from the sequencing analysis.

Group	No. of reads	No. of OTUs	Coverage (%)	Richness estimator				Diversity index
				ACE	95% CI	Chao	95% CI	Shannon	Simpson	Evenness
HC	630,000	10,996	97.19	4257.84	4031.74–4506.03	3090.89	2840.24–3395.07	4.733331714	0.032098	0.354556683
MDD	690,000	14,406	97.47	3762.74	3557.59–3989.13	2790.49	2562.74–3069.66	4.647938217	0.036133	0.34454694
GAD	300,000	15,010	96.15	5978.93	5689.91–6291.70	4170.2	3857.99–4538.97	5.017976	0.025108	0.397936241

CI, confidence interval.