Table 4.

Multinomial logistic regression models of AAC group with supplemental zinc, total zinc intake and serum zinc level

Variables	Mild–moderate AAC versus no AAC		Severe AAC versus no AAC
	OR (95% CI)	P-value	OR (95% CI)	P-value
Supplemental zinc intake (per 1 mg/day; n = 1870)
Unadjusted	1.01 (0.99–1.03)	0.20	1.03 (1.01–1.04)	0.002
Model 1	1.00 (0.98–1.01)	0.86	1.00 (0.98–1.02)	0.95
Model 2	1.00 (0.98–1.01)	0.91	1.00 (0.97–1.02)	0.74
Total zinc intake (per 1 mg/day; n = 1870)
Unadjusted	1.01 (0.99–1.02)	0.36	1.02 (1.00–1.03)	0.01
Model 1	1.00 (0.98–1.01)	0.53	0.99 (0.97–1.01)	0.42
Model 2	1.00 (0.98–1.01)	0.55	0.99 (0.97–1.01)	0.42
Serum zinc level (per 1 μg/dL; n = 800)
Unadjusted	1.01 (1.00–1.03)	0.07	1.00 (0.97–1.04)	0.76
Model 1	1.02 (1.00–1.03)	0.06	1.01 (0.98–1.04)	0.50
Model 2	1.01 (1.00–1.03)	0.11	1.01 (0.98–1.03)	0.71

Model 1: Adjusted for age, sex and race/ethnicity.

Model 2: Adjusted for variables in Model 1 plus caloric intake, diabetes, hypertension, smoking history, eGFR, albuminuria, albumin, serum phosphorus, proton pump inhibitor and diuretic use.