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Turkish Validation of the Parkinson Disease Cognitive Functional Rating Scale

Turkish Validation of the Parkinson Disease Cognitive Functional Rating Scale

Enrolling By Invitation
40 years and older
All
Phase N/A

Overview

The aim of the present study is to translate the Parkinson's Disease-Cognitive Functional Rating Scale into Turkish (PD-CFRS-Turkish version) and to evaluate its validity and reliability.

Description

The Parkinson's Disease-Cognitive Functional Rating Scale (PD-CFRS) is one of the Parkinson's disease-specific instruments developed to assess a broad range of functional impairments resulting from cognitive deficits in individuals with Parkinson's disease (PD). The PD-CFRS is specifically designed to evaluate cognitive dysfunction while minimizing the confounding effects of motor symptoms.

The scale consists of 12 items that assess whether the patient experiences difficulties in performing activities such as managing money and household finances, arranging vacations or meetings, handling personal correspondence, checking medication schedules, organizing daily routines, using electrical appliances, understanding public transportation, dealing with unforeseen situations, expressing intentions, comprehending written information, and using a mobile phone.

Each item is rated on a 3-point scale ranging from 0 to 2. If the participant has never performed the activity in question, a score of 8 is assigned. At the end of the assessment, the average score for items rated between 0 and 2 is calculated and rounded to the nearest whole number. This value replaces all items initially scored as 8. Once all substituted scores are assigned, the total score is obtained by summing all item scores. The administration time for the scale is approximately 5 minutes.

Eligibility

Inclusion Criteria:

  • Clinically diagnosed with idiopathic Parkinson's disease by a neurologist.
  • Evaluated between Stage 1-3 according to the Hoehn and Yahr Staging Scale.
  • Aged 40 years or older.
  • Agreed to participate in the study after being given sufficient information.

Exclusion Criteria:

  • Patients with a Montreal Cognitive Assessment score of 20 and below.
  • Patients with cardiovascular, vestibular, musculoskeletal or additional neurological disease.

Study details
    Cognition
    Parkinson's Disease
    Reliability and Validity
    Cognitive Functions
    Cognitive Functioning

NCT07253376

Gazi University

28 March 2026

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