Table 1.

Patient demographic and disease information at baseline visit

Variable	Summary (N=495)
Age at first visit (years)	71 (38, 93)
Gender (Male)	338 (68%)
Age at PD onset	66 (16, 90)
Disease duration (months)	45 (2, 621)
Personal history of depression	154 (31%)
Current depression	60 (12%)
Family history of movement disorders	136 (27%)
Family history of PD	76 (15%)
Intellectual impairment	29 (6%)
Hoehn and Yahr stage (>2)	131 (27%)
ADL score (any impairment)	83 (17%)
UPDRS – tremor	2 (0, 18)
UPDRS – rigidity	7 (0, 16)
UPDRS – bradykinesia	14 (0, 39)
UPDRS – instability	2 (0, 11)
UPDRS – dyskinesia (>0)	76 (16%)
UPDRS – total	25 (0, 64)

• The sample median (minimum, maximum) is given for numerical variables. Information was unavailable regarding intellectual impairment (N=16), Hoehn and Yahr stage (N=16), UPDRS – tremor (N=16), UPDRS – rigidity (N=16), UPDRS – bradykinesia (N=16), UPDRS – instability (N=16), UPDRS – dyskinesia (N=16), UPDRS – total (N=16), and UPDRS – dominance score (N=16). PD, Parkinson’s disease; UPDRS, Unified Parkinson’s Disease Rating Scale.