Table 3.

Assessment tools.

Tools	Objectives	Brief description	Translated into other languages other than English		Self-administered		References
			Yes	No	Yes	No
Questionnaire for impulsive-compulsive disorders in PD (QUIP)	To screen ICRDs in PD patients.	Most commonly used, validated, self-report screening tool to assess ICDs	+ German, Italian		+		(43)
QUIP rating scale (QUIP-RS)	To screen ICDs in PD patients	Rates severity of the ICDs and provides a measure of change over time	+ German, Italian, Spanish		+		(44), (45, 46)
Minnesota Impulsive Disorders Interview (MIDI)	To assess the degree of impulsivity related to compulsive behavior	A questionnaire to assess the presence of impulsive–compulsive behaviors associated to dopamine replacement therapy in PD.		+		+	(47–49)
Dopamine Dysregulation Syndrome-Patient and Caregiver Inventory (DDS-PC)	To screen ICRDs in PD patients	Questionnaire to assess the presence of several ICD behaviors associated to DDS in PD, for both self-report and caregiver's report, to uncover eventual discrepancies.		+	+		(50)
Movement disorders Society UPDRS, included a single item for DDS	Not valid as an assessment tool for ICDs	The MDS-UPDRS contains questions/evaluations, divided in three domains scoring 18 items of motor, behavior and daily activities		+	+		(51)
Barrat Impulsiveness Scale (BIS)	To assess impulsivity in PD patients.	High reliability and high predictive validity to assess high risk behaviors including symptoms of conduct disorders, attention deficit disorders, substance abuse and suicide attempt.	+ Brazilian Portuguese, Spanish, dialectal Arabic		+		(52–55)
Ardouin scale of behavior in Parkinson's disease	To assess neuropsychiatric features in PD patients	Specifically designed for asses mood and behavior, quantifying changes related to Parkinson's disease, to dopaminergic medication, and to non-motor fluctuations		+		+	(56)
Structured Clinical Interview for Obsessive-Compulsive Spectrum Disorders (SCID-OCSD)	To determine the presence of a range of ICDs.	A structured clinician-administered interview for the diagnosis of putative OCSDs		+		+	(57)
Parkinson's Impulse Control Scale (PICS)	To rate severity of ICD in PD patients.	A brief, clinician-rated screening tool that assess the intensity and impact of a wide range of ICBs common in PD		+		+	(58)

QUIP, Questionnaire for impulsive-compulsive disorders in PD; QUIP-RS, QUIP rating scale; MIDI, Minnesota Impulsive Disorders Interview; DDS-PC, Dopamine Dysregulation Syndrome-Patient and Caregiver Inventory; BIS, Barrat Impulsiveness Scale; SCID-OCSD, Structured Clinical Interview for Obsessive-Compulsive Spectrum Disorders; PICS, Parkinson's Impulse Control Scale.