Table 3.

Comparison between subjects with SDE vs NDE

Diversity indices/ Phylum/ratio	SDE Mean ± SD	NDE Mean ± SD	p-value
Chao1 diversity	116 ± 30	118 ± 35	0.88
Faith’s phylogenetic diversity	57.5 ± 10.7	60.7 ± 11.2	0.52
Shannon’s index	4.7 ± 0.64	4.9 ± 0.68	0.67
Observed OTU	891 ± 186	954 ± 155	0.44
Simpson diversity	0.076 ± 0.04	0.073 ± 0.04	0.90
Actinobacter	71 ± 70	45 ± 36	0.28
Bacteroides	332 ± 230	577 ± 744	0.39
Firmicutes	3502 ± 1898	4736 ± 1184	0.12
Proteobacteria	3.8 ± 10.0	1.3 ± 1.8	0.50
Firmicutes/Bacteroides	27 ± 58	30 ± 38	0.92

SDE individuals who met full Sjögren’s criteria, NDE individuals who did not meet full Sjögren’s criteria, OTU operational taxonomy unit, SD standard deviation