Table 2.

Independent association of ω-6 fatty acids intake and blood cadmium on low cognitive performance

Variables	Model 1			Model 2			Model 3
	OR (95%CI)	P		OR (95%CI)	P		OR (95%CI)	P
Blood cadmium
Normal-level	Ref			Ref			Ref
High-level	2.104 (1.547–2.863)	< 0.001		2.006 (1.516–2.653)	< 0.001		1.558 (1.144–2.123)	0.006
Total ω-6 fatty acids intake
Normal-level	Ref			Ref			Ref
Low-level	1.711(1.195–2.449)	0.005		1.694 (1.177–2.439)	0.006		1.633 (1.094–2.436)	0.018

OR odds ratio, CI confidence interval, Ref reference

Model 1: Univariable logistic regression analysis

Model 2: Multivariate logistic regression analysis with adjustment for age, gender, and BMI;

Model 3: Multivariate logistic regression analysis with adjustment for age, gender, BMI, race, marital status, educational level, annual household income, drinking, work activity, recreational activities, depression, hypertension, diabetes, stroke, CHF, heart attack, TC, GHb, 25(OH)D