Influence of Hypertension on Neurocognitive Domains in Nondemented Parkinson’s Disease Patients
Table 2
Sample characteristics.
Parkinson’s disease patients 88% caucasian
Mean
Standard deviation
Range
Age (years)
64.7
10
30–90
Years of education
15.0
3
7–20
Years with symptoms
9.7
6
1–33
UPDRS motor score, on medication
26.3
10
7–54
Percent tremor predominant
82
Levodopa equivalency dose
771
532
0–2950
Dementia Rating Scale-II total score
137.2
5
119–148
Neurocognitive domain -scores*
Executive composite score
−0.6
0.9
−2.9–1.9
Verbal memory composite score
−0.4
1.1
−3.7–1.8
Processing speed composite score
−0.7
0.9
−3.2–1.9
Language composite score
0.2
1.2
−4.0–3.2
Working memory composite score
0.2
0.8
−1.9–2.7
Mild cognitive impairment (MCI) subtypes
Percent amnestic single-domain MCI
0.3
Percent multidomain amnestic MCI
30.2
Percent nonamnestic MCI
16.7
Percent cognitively intact
52.8
-scores based on normative data from test manuals and published norms: normative mean = 0, standard deviation = 1; mild cognitive impairment was based on Movement Disorder Society criteria and utilized a 1.5 SD below the mean cut value. [25] UPDRS: Unified Parkinson’s Disease Rating Scale.
