Table 1.

Clinical and demographic data of subjects enrolled for the study.

	Controls	PD patients	p-value
n (gender)	n = 33 (15 M, 18 F)	n = 39 (25 M, 14 F)	0.11
Age (range)	61.9 ± 6.2 (47–78)	65.2 ± 8.9 (44–78)	0.10
Age at onset (years)	_	54.9 ± 9.0
Disease duration (years)	_	9.5 ± 6.2
Hoehn and Yahr scale	_	2.1 ± 0.7
UPDRS scale III	_	18.9 ± 10.6

Results are expressed as mean ± SD. Note: statistical comparisons were performed between the study groups: Chi-Square Test and Student-t-test were used for gender and age comparison, respectively. The significance level assumed was 0.05.