Table 3.

Linear regression analyses of the associations between the gut microbiota and the CES-D score (n = 55).

Variables	CES-D Score
	R2	β	95%CI	p-Value
Chao index	0.721	−0.348	−0.061, −0.021	<0.001
Shannon index	0.710	−0.334	−5.619, −1.709	<0.001
Simpson index	0.678	0.260	4.610, 25.499	0.006
PC1	0.639	−0.175	−10.898, 1.020	0.102
Bacteroidetes	0.637	−0.153	−0.198, 0.024	0.121

Simple linear regression models were used after adjusting for age, BMI, family monthly income, education level, menopausal status, marital status, employment, residence and SAS score. CES-D, Center for Epidemiologic Studies Depression.