Early PD Onset

Late PD Onset

Number

79

279

Gender (M:F)

50:28

150:126

Race (W:NW)

68:11

229:50

Any Family History of PD (Y:N)

30:50

80:199

Sleep disturbances

17/33

26/87

Sibling with PD

8/79

16/279

Complications

(% Total)

Sleep disorders*

51.5

29.9

Restless Leg Syndrome

0

0.4

Compulsive behavior

8.9

6.1

Hallucinations

19.0

26.9

Dementia

12.7

22.6