Evaluation of PDQ-8 and its relationship with PDQ-39 in China: a three-year longitudinal study

Autor: Kui Chen, Yu-Jie Yang, Feng-Tao Liu, Da-Ke Li, Lu-Lu Bu, Ke Yang, Ying Wang, Bo Shen, Rong-Yuan Guan, Jie Song, Jian Wang, Jian-Jun Wu
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Health and Quality of Life Outcomes, Vol 15, Iss 1, Pp 1-7 (2017)
Druh dokumentu: article
ISSN: 1477-7525
DOI: 10.1186/s12955-017-0742-5
Popis: Abstract Background Parkinson’s disease is characterized by motor and non-motor symptoms with wide ranging impacts on the health-related quality of life. The 39-item Parkinson’s disease Questionnaire (PDQ-39) is the most widely used PD-specific health-related quality-of-life questionnaire. The short-form 8-item Parkinson’s disease Questionnaire (PDQ-8) was found to produce results similar to that of the PDQ-39 cross-culturally. However, there is no evaluation of the PDQ-8 in the mainland of China. Methods In this longitudinal study, 283 patients with Parkinson’s disease were recruited. The PDQ-39, the PDQ-8 and other scales were administered. Patients attended the clinic once annually for three years to complete the scales. Results The PDQ-8 was found to have good validity and reliability. There was a strong correlation between the summary indices of the PDQ-8 and the PDQ-39 (r=0.93, P
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