Table 1.

Sample Characteristics

N=214 Parkinson Patients
151 Males (70.6%); 63 Females (29.4%)	Total	Intact Cognition	MCI
		N=113	N=101
	Mean (SD)	Mean (SD)	Mean (SD)
Percent Caucasian	95.8	98.2	93.1
Age in years	64.3 (9.5)	63.7 (9.5)	65.1 (9.5)
Years of Education	14.9 (2.9)	15.0 (2.8)	14.9 (3.0)
Years with Symptoms	10.0 (5.8)	9.1 (4.6)	10.9 (6.6)
UPDRS Motor Score, on medication	26.1 (10.8)	23.0 (9.5)	29.3 (9.6)
Percent Tremor Predominant	80.8	80.5	81.2
Levodopa Equivalency Dose	829.1 (564.3)	816.4 (590.0)	843.3 (536.7)
Percent on Antidepressant Medication	38.6	37.8	39.6
Percent on Anti-anxiety Medication	19.7	21.6	17.5
Dementia Rating Scale-Total	137.25 (4.9)	139.3 (3.4)	135.0 (5.2)
Beck Depression Scale-II	9.4 (6.3)	8.5 (5.9)	10.4 (6.5)
Apathy Scale	10.7 (6.3)	9.9 (5.9)	11.6 (6.5)
State-Trait Anxiety Inventory-Trait Scale	35.4 (9.8)	34.0 (9.6)	37.0 (9.8)

UPDRS= Unified Parkinson’s Disease Rating Scale-Part III; SD= standard deviation; MCI= mild cognitive impairment