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Gepubliceerd in: Quality of Life Research 4/2011

01-05-2011

Quality of life in Parkinson’s disease patients: validation of the Short-Form Eight-item Parkinson’s Disease Questionnaire (PDQ-8) in Taiwan

Auteurs: Tzu-Ting Huang, Hua-Yun Hsu, Bi-Hwa Wang, Kang-Hua Chen

Gepubliceerd in: Quality of Life Research | Uitgave 4/2011

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Abstract

Purpose

This study sought to evaluate the Chinese version of the eight-item Parkinson’s Disease Questionnaire (PDQ-8), through standard psychometric techniques.

Methods

A cross-sectional study was conducted on 100 Parkinson’s disease patients attending a Movement Disorders Unit. Neurologists’ assessments were based on Hoehn and Yahr, Schwab and England and Unified Parkinson’s Disease Rating Scales. Patients’ self-evaluations included the Taiwanese Depression Questionnaire, the 39-item Parkinson’s Disease Questionnaire (PDQ-39) and PDQ-8, pain, and Pittsburgh Sleep Quality Index. Analyses for internal consistency, inter-rater reliability, and construct validity were performed.

Results

There was no evidence of floor or ceiling effects. The alpha coefficient was 0.81. Correlation of social support and bodily discomfort with the PDQ-8 was modest (0.46 and 0.36, respectively). PDQ-8 convergent validity with the PDQ-39 was very high (r = 0.96), and known-groups validity proved satisfactory.

Conclusions

The results of this study suggest the PDQ-8 is a valid and reliable disease-specific health-related quality-of-life instrument for Parkinson’s disease in Taiwan when used independently of the PDQ-39.

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Metagegevens
Titel
Quality of life in Parkinson’s disease patients: validation of the Short-Form Eight-item Parkinson’s Disease Questionnaire (PDQ-8) in Taiwan
Auteurs
Tzu-Ting Huang
Hua-Yun Hsu
Bi-Hwa Wang
Kang-Hua Chen
Publicatiedatum
01-05-2011
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 4/2011
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-010-9777-3