Table 1. Demographic and clinical details of the subjects included in the study.

Patient Groups	OND	PD
No (M/F)	18 (11/7)	12 (5/7)
Age (years)	67.46±7.70	66.83±8.22
Disease duration (years)	/	9.58±11.57
UPDRS	/	26.17±18.69
H&Y score	/	1.37±1.02
MMSE	25.64±4.90	24.00±5.42

UPDRS  =  unified Parkinson's disease rating score; H&Y  =  Hoehn and Yahr score; MMSE  =  mini mental state examination. The data are reported as the mean ± the standard deviation.