Table 4.

The association between serum zinc and olfactory and gustatory dysfunction

	Odds ratio of having olfactory dysfunction per 10 μg/dL decrease in serum zinc				Odds ratio of having gustatory dysfunction per 10 μg/dL decrease in serum zinc
	Crude	p-value	Adjusteda	p-value	Crude	p-value	Adjusteda	p-value
CKD (eGFR< 60 ml/min/1.73 m2)	1.17 (0.79, 1.60)	0.50	1.02 (0.83, 1.25)	0.83	1.27 (0.94, 1.61)	0.06	1.24 (0.81, 1.90)	0.30
Controls (without CKD)	0.94 (0.79, 1.13)	0.52	1.05 (0.90, 1.23)	0.50	1.03 (0.92, 1.15)	0.61	1.04 (0.89, 1.22)	0.60

^aMultivariable logistic regression model was adjusted for age, sex, race, educational attainment, marital status, family income to poverty ratio, alcohol drinking, cigarette smoking status, diabetes, hypertension, obesity, history of cardiovascular disease, history of cancer and depression