Table 3.

Logistic regression model for association of healthy lifestyle factors and cognitive impairment.

Lifestyle factors	Unadjusted		Adjusted
	OR (95% CI)	P	OR (95% CI)	P
Body mass index
< 18.5 or ≥ 23.9 kg/m2 (n = 1,211)	Ref.	–	Ref.	–
18.5–23.9 kg/m2 (n = 1,179)	0.95 (0.73–1.22)	0.673	1.00 (0.75–1.32)	0.973
WHR
≥0.9 (men), ≥0.85 (women) (n = 1660)	Ref.	–	Ref.	–
< 0.9 (men), < 0.85 (women) (n = 730)	0.43 (0.31–0.60)	< 0.001	0.54 (0.37–0.78)	0.001
Vegetables and fruits
Less than daily (n = 104)	Ref.	–	Ref.	–
Daily (n = 2,286)	0.58 (0.34–0.97)	0.040	0.57 (0.32–1.02)	0.057
Smoking
Current (n = 310)	Ref.	–	Ref.	–
Former or never (n = 2,080)	1.23 (0.82–1.85)	0.309	0.71 (0.44–1.16)	0.174
Alcohol consumption
Not moderate (n = 272)	Ref.	–	Ref.	–
Moderate or never (n = 2,118)	0.96 (0.65–1.43)	0.844	0.99 (0.62–1.57)	0.958
Physical activity
< 3.5 h/week (moderate or vigorous) (n = 731)	Ref.	–	Ref.	–
≥3.5 h/week (moderate or vigorous) (n = 1,659)	0.66 (0.50–0.85)	0.002	0.69 (0.51–0.92)	0.013

Adjusted by age, sex, education level, job type, diabetes, hypertension, hyperlipidemia, faller.

HR, hazard ratio; CI, confidence interval.