Table 1.

Comparison of the general clinical data between healthy controls (HCs) and Parkinson’s disease (PD) patients in the primary and validation sets.

	Primary set		P-value	Validation set		P-value
	HCs	PD		HCs	PD
Sex (M/F)	16/16	28/20	0.46	4/5	7/4	0.68
Age (years)	57.25 ± 4.87	55.94 ± 9.42	0.42	53.22 ± 4.41	58.73 ± 7.89	0.08
Years of education	11.12 ± 4.53	11.38 ± 3.61	0.79	11.89 ± 4.96	11.00 ± 2.61	0.61
MMSE	28.91 ± 1.73	28.52 ± 1.35	0.27	29.67 ± 0.71	29.18 ± 1.08	0.26