Table 2.

Univariate and multivariate logistic regression analyses for the association between depression and albumin. Model 1 unadjusted; model 2 adjusted for age, sex, marital status, education, occupation, and smoking; model 3 adjusted for confounders in model 2 plus other health status variables such as nutrition, comorbidity, biomedical markers such as serum calcium, phosphate, and magnesium

Variable		Depression
		Model 1				Model 2				Model 3
		β (95% CI)		P-value		β (95% CI)		P-value		β (95% CI)		P-value
Albumin		0.96 (0.90–0.99)		0.001		0.952 (0.92–0.98)		0.002		0.945 (0.92–0.98)		0.003
Quartiles of Albumin(g/L)
< 43.8		1				1				1
43.8- 45.99		0.78 (0.63–0.97)		0.02		0.80 (0.63- 1.0)		0.05		0.73 (0.56–0.92)		0.01
46–48		0.64 (0.52–0.81)		<0.001		0.67 (0.53–0.86)		0.001		0.58 (0.44–0.77)		<0.001
> 48		0.66 (0.53–0.83)		<0.001		0.75 (0.59–0.96)		0.02		0.59 (0.44–0.82)		0.001
P for trend				<0.001				0.009				0.001