Table 1.

Patient demographics data

	PD	Healthy controls	Comparison (p value)
Number of participants	115	115	N/A
Men/women	52/63	61/54	0.291
Mean age (years)	68.9 ± 6.9	69.8 ± 3.0	0.194
Mean disease duration from onset to MRI examination (years)	10.4 ± 5.7	N/A	N/A
Median Unified Parkinson’s Disease Rating Scale-III motor subscale score	22 (13.5–32)	N/A	N/A
Hoehn-Yahr stage (1/2/3/4/5)	7/33/54/20/1	N/A	N/A
Dominant side (left/right/none)	52/60/3	N/A	N/A

Note: Data are shown as the mean ± standard deviation or median (interquartile range), where applicable. For comparisons of age and gender, the Student t test and chi-square test, respectively were performed

N/A, not applicable