Table 2. The proportions of bacteria in phyla according to mean relative abundances of bacteria detected in the NAFLD patients by BMI.

Variables	Total (n=37)	Normal (n=5)	Pre-obese (n=7)	Obese (n=25)
Firmicutes	55.35 ± 18.28	56.91 ± 28.77	52.08 ± 12.45	55.96 ± 17.91
Bacteroidetes	29.94 ± 17.09	23.16 ± 20.06	31.78 ± 12.58	30.78 ± 17.89
Firmicutes Bacteroidetes Ratio	36.05 ± 135.59	16.14 ± 20.44	2.05 ± 1.24	49.54 ± 164.00
Proteobacteria	11.83 ± 12.79	17.49 ± 16.87	8.72 ± 7.86	11.57 ± 13.15
Actinobacteria	1.07 ± 1.58	0.84 ± 1.05	1.15 ± 1.85	1.09 ± 1.63
Euryarchaeota	0.02 ± 0.05	0.060 ± 0.13	0.002 ± 0.01	0.011 ± 0.03
Fusobacteria	0.11 ± 0.42	0.03 ± 0.05	0.02 ± 0.03	0.15 ± 0.50
Synergistetes	0.11 ± 0.62	0.77 ± 1.69	0 ± 0	0.01 ± 0.04
Tenericutes	0.08 ± 0.33	0.01 ± 0.01	0.30 ± 0.75	0.04 ± 0.09
Verrucomicrobia	0.96 ± 3.74	0.001 ± 0.001	4.28 ± 8.12	0.22 ± 0.75
Other	0.51 ± 1.16	0.73 ± 0.95	1.66 ± 2.27	0.15 ± 0.20

NAFLD: non-alcoholic fatty liver disease; BMI: body mass index.