Table 2. The results of multivariable logistic regression analysis for the risk of dementia in PD.

	Univariate			Multivariate
	OR	95% CI	P value	OR	95% CI	P value
Age, per unit	1.1	1.0–1.2	<0.001	1.1	0.9–1.2	NS
H-Y, per unit	3.2	1.6–6.2	<0.001	2.6	1.2–5.9	<0.05
Education, per unit	0.8	0.6–0.9	<0.01	0.7	0.5–0.9	<0.05
CAD	11.3	0.9–130.7	NS	-	-	-
OH	4.9	1.6–15.3	<0.01	8.9	1.6–49.0	<0.05
SH	4.0	1.5–11.2	<0.01	1.5	0.4–6.2	NS
Beta-blocker use	17.8	1.8–180.2	<0.05	456.9	8.3–25304.2	<0.01