Research Article

An Exploration of Apathy and Impulsivity in Parkinson Disease

Table 1

Demographic and clinical description of the entire Parkinson disease (PD) study sample and proportion of impulse control disorder subtype within the “ICD” subsample.

Entire study sample
Mean (SD) or n (%)

Age in years63.23 (10.67)
(range 26 to 86)
Gender (proportion male)69 (70%)
Disease duration in months93.87 (65.85)
Age in years at onset of motor symptoms55.39 (11.58)
Unified PD rating scale, Part III score28.79 (11.86)
Hoehn-Yahr score2.31 (0.71)
MiniMental State Exam score28.45 (1.75)
(median 29.00)

Impulse control disorder sample
n (%)

Pathological gambling13 (37.1%)
Hypersexuality (clinically significant only)10 (28.6%)
Hypersexuality (clinically significant and subsyndromal)18 (51.4%)
Compulsive shopping10 (28.6%)
Binge eating8 (22.9%)
Dopamine dysregulation syndrome3 (8.6%)