Table 1.

Clinical characteristics of the cross-sectional PD cohort (n = 392)

Clinical characteristics	Mean (SD) or n (%)
Age at assessment (years)	64.8 (9.2)
Age at onset (years)	56.9 (10.2)
Disease duration (years)	7.9 (5.7)
Sex
Male	253 (64.5%)
Female	139 (35.5%)
Medication naïve
Yes	32 (8.2%)
No	360 (91.8%)
LEDD (mg/day)	889.5 (579.6)
DBS
Yes	40 (10.2%)
No	352 (89.8%)
H&Y	1.8 (0.9)

SD standard deviation, % percentage, LEDD levodopa equivalent daily dose, DBS deep brain stimulation, MDS-UPDRS III Movement Disorder Society-Unified Parkinson’s Disease Rating Scale III, H&Y Hoehn & Yahr