Research Article

Impulsive-Compulsive Behaviours in Belgian-Flemish Parkinson’s Disease Patients: A Questionnaire-Based Study

Table 1

Clinical characteristics of complete study population, QUIP-positive, and QUIP-negative patients.

TotalQUIP-positiveQUIP-negative

Age (years)70.2 ± 9.268.3 ± 9.271.5 ± 9.1
M/F ratio1.31.81.1
Onset age (years)60.2 ± 10.857.4 ± 10.662.1 ± 10.7
Disease duration (years)10.2 ± 6.810.9 ± 6.09.7 ± 7.3
Married74/87 (85.1%)29/36 (82.9%)45/52 (86.5%)
Higher education29/86 (33.7%)10/35 (28.6%)19/51 (37.3%)
Smoking (current or past)26/87 (29.9%)10/35 (28.6%)16/52 (30.8%)
History of mood disorder20/85 (23.5%)10/35 (28.6%)10/50 (20.0%)
History of substance abuse13/85 (15.3%)7/35 (20.0%)6/50 (12.0%)
Familial history of mood disorder5/85 (5.9%)4/35 (11.4%)1/50 (2.0%)
Familial history of substance abuse16/85 (18.8%)9/35 (25.7%)7/50 (14.0%)
Levodopa-induced dyskinesia39/82 (47.6%)13/33 (39.4%)26/49 (53.1%)
Levodopa73/85 (85.9%)30/35 (85.7%)43/50 (86.0%)
Dopamine agonist43/85 (50.6%)21/35 (60.0%)22/50 (44.0%)
LEDD (mg)615 ± 353671 ± 418575 ± 298

M/F ratio: male/female ratio; QUIP: Questionnaire for Impulsive-Compulsive Disorders in Parkinson’s Disease; LEDD: levodopa equivalent daily dosage. Continuous variables are shown as mean ± standard deviation; categorical or binary variables are shown as proportion and percentage; variables were compared between QUIP-positive and QUIP-negative groups. .