Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.parkreldis.2004.05.007
Title: Validity and reliability of the PDQ-39 and the PDQ-8 in English-speaking Parkinson's disease patients in Singapore
Authors: Tan, L.C.S.
Luo, N. 
Nazri, M.
Li, S.C. 
Thumboo, J.
Keywords: Health status
Parkinson's disease
PDQ-39
PDQ-8
Quality of life
Singapore
Issue Date: Dec-2004
Citation: Tan, L.C.S., Luo, N., Nazri, M., Li, S.C., Thumboo, J. (2004-12). Validity and reliability of the PDQ-39 and the PDQ-8 in English-speaking Parkinson's disease patients in Singapore. Parkinsonism and Related Disorders 10 (8) : 493-499. ScholarBank@NUS Repository. https://doi.org/10.1016/j.parkreldis.2004.05.007
Abstract: The purpose of the study was to assess the validity and reliability of the Parkinson's disease questionnaire (PDQ-39, UK English version) as well as its briefer version (the PDQ-8) among Asian patients with Parkinson's disease (PD) in Singapore. Eighty-eight patients recruited from movement disorder clinics or patient support groups completed the PDQ-39 and EQ-5D, a generic health related quality of life questionnaire previously validated for use in Singapore. PDQ-39 items showed good convergent and discriminant validity. Construct validation against the EQ-5D showed strong correlation between these scales as hypothesised (Spearman's ρ: 0.53-0.71, P
Source Title: Parkinsonism and Related Disorders
URI: http://scholarbank.nus.edu.sg/handle/10635/106504
ISSN: 13538020
DOI: 10.1016/j.parkreldis.2004.05.007
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