Parkinson’s Disease and Homocysteine: A Community-Based Study in a Folate and Vitamin B12 Deficient Population

Table 4

Univariate and multivariate analysis for the association between PD and possible risk factors.

Factors	Univariate results		Multivariate results
	OR (95% CI)	value	Adjusted OR (95% CI)	value
Serum tHcy concentrations
≤22.175	1		1
>22.175	2.831 (0.917–8.738)	0.070	3.013 (0.785–11.560)	0.108
Serum folate concentrations
≤7.375	1		1
>7.375	0.652 (0.227–1.874)	0.427	0.627 (0.172–2.286)	0.480
Serum vitamin B12 concentrations
≤147.295	1		1
>147.295	0.652 (0.227–1.874)	0.427	0.312 (0.059–1.642)	0.169
Current smoking
Yes	0.212 (0.067–0.674)	0.009	0.138 (0.034–0.561)	0.001
No	1		1