TABLE 1.

Descriptive characteristics of the study population.

Phenotype	N	%
N	948
Females	948	100
	Mean	SD
Age, years	65	7.84
BMI, km/m2	26.25	4.90
Acetate, mmol/l (log)	−0.745	0.594
Fiber intake, gr	20.3	5.70
Visceral fat, gr	613	294
Indices of microbiome alpha-diversity
Shannon diversity	3.8	0.505
CHAO1	230	67.3
Number of observed OTUs	224	64.5
Inverse Simpson diversity	23.1	12.2
Gini Simpson diversity	0.938	0.05