Table 1.

Basic information and motor features in patients with Parkinson's disease (PD) and controls.

Items	Patients with PD (n = 500)	Normal controls (n = 115)
Sex (male %)	269 (53.8%)	50 (43.5%)
Age (year)	60 (52–67)	55 (49–64)
Educational years (year)	9 (6–12)	9 (9–12)
Smoking or not	144 (28.8%)	32 (27.8%)
Age of onset (year)	55 (47–62)	–
Duration(year)	3 (2–6)	–
UPDRS II	12 (9–17)	–
UPDRS III	26 (19–38)	–
H-Y stage	2 (1.5–3)	–

Data for continuous variables are presented as medial levels (IQRs).