ArticleNoro psikiyatri arsivi2018
Validity and Reliability of the Turkish Version of the 8-Item Parkinson's Disease Questionnaire.
Article in Noro psikiyatri arsivi, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Quality of life measures in Parkinson's disease: a systematic literature review of patient-reported outcomes measures (PROMs) and their psychometric properties.Journal of neurology · 2025Pooled it
- Task-oriented circuit training combined with aerobic training improves motor performance and balance in people with Parkinson's Disease.Acta neurologica Belgica · 2021Trial
- Cross-Cultural Adaptation and Psychometric Evaluation of the Turkish Version of the Exercise-Specific Parkinson's Disease Questionnaire.Brain and behavior · 2026Article
- Clinical Outcome Assessments in Parkinson's Disease: A Scoping Review of Current Rating Scales and Future Needs.Movement disorders clinical practice · 2026Article
- Psychometric properties of the Turkish version of the Parkinson's disease quality of life-7 (PDQoL-7) in older adults.BMC geriatrics · 2026Article
- The effects of robot-assisted arm training on upper limb functions in Parkinson disease.Turkish journal of physical medicine and rehabilitation · 2025Article
- Evaluation and validation of a patient-reported quality-of-life questionnaire for Parkinson's disease.Journal of patient-reported outcomes · 2022Article
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Authors and funding
6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionSymptomatic control and improvement of health-related quality of life (HRQoL) is a key feature of the management of patients with Parkinson's disease (PD). The 39-item Parkinson's Disease Questionnaire (PDQ) and its short version, PDQ-8, validated disease-specific patient-reported instruments, have been highly recommended to use for assessing HRQoL in patients with PD. The aim of this study was to assess the reliability and validity of the Turkish version of the PDQ-8.
methodsEighty-three patients with PD were recruited for this methodological and cross-sectional study. The PDQ-8 was repeated to assess the test-retest reliability after one-week interval. The participants completed the 36-Item Short Form Health Survey (SF-36) as a generic HRQoL previously validated in Turkey. The Hoehn & Yahr stages of the patients were also determined. The SF-36 and Hoehn & Yahr stages were used to assess the convergent validity of the PDQ-8.
resultsThe Cronbach's alpha coefficient was 0.78 (95% CI: 0.70-0.84, p<0.001) for PDQ-8. The test-retest reliability was very high as the intra-class correlation coefficient was 0.97 (95% CI: 0.93-0.99, p<0.001). The PDQ-8 had significant correlations with the physical and mental component scores of SF-36 (ρ=-0.52, p<0.001 and ρ=-0.64, p<0.001, respectively) and Hoehn & Yahr stages (ρ=0.56, p<0.001). There was no evidence of floor or ceiling effects.
conclusionThe results of this study suggest that the Turkish version of the PDQ-8 is a reliable, valid, less time-consuming, and brief disease-specific instrument to assess HRQoL in patients with Parkinson's disease.
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