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CLC number: R741

On-line Access: 2010-07-04

Received: 2009-12-01

Revision Accepted: 2010-04-12

Crosschecked: 2010-06-09

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Journal of Zhejiang University SCIENCE B 2010 Vol.11 No.7 P.531-538

http://doi.org/10.1631/jzus.B0900380


Validity and reliability testing of the Chinese (mainland) version of the 39-item Parkinson’s Disease Questionnaire (PDQ-39)


Author(s):  Wei Luo, Xiao-hong Gui, Bo Wang, Wen-ying Zhang, Zhi-yuan Ouyang, Yi Guo, Bao-rong Zhang, Mei-ping Ding

Affiliation(s):  Department of Neurology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China

Corresponding email(s):   Luoweirock@yahoo.com.cn

Key Words:  39-item Parkinson’, s Disease Questionnaire (PDQ-39), Quality of life, Validity, Reliability


Wei Luo, Xiao-hong Gui, Bo Wang, Wen-ying Zhang, Zhi-yuan Ouyang, Yi Guo, Bao-rong Zhang, Mei-ping Ding. Validity and reliability testing of the Chinese (mainland) version of the 39-item Parkinson’s Disease Questionnaire (PDQ-39)[J]. Journal of Zhejiang University Science B, 2010, 11(7): 531-538.

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author="Wei Luo, Xiao-hong Gui, Bo Wang, Wen-ying Zhang, Zhi-yuan Ouyang, Yi Guo, Bao-rong Zhang, Mei-ping Ding",
journal="Journal of Zhejiang University Science B",
volume="11",
number="7",
pages="531-538",
year="2010",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B0900380"
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%T Validity and reliability testing of the Chinese (mainland) version of the 39-item Parkinson’s Disease Questionnaire (PDQ-39)
%A Wei Luo
%A Xiao-hong Gui
%A Bo Wang
%A Wen-ying Zhang
%A Zhi-yuan Ouyang
%A Yi Guo
%A Bao-rong Zhang
%A Mei-ping Ding
%J Journal of Zhejiang University SCIENCE B
%V 11
%N 7
%P 531-538
%@ 1673-1581
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B0900380

TY - JOUR
T1 - Validity and reliability testing of the Chinese (mainland) version of the 39-item Parkinson’s Disease Questionnaire (PDQ-39)
A1 - Wei Luo
A1 - Xiao-hong Gui
A1 - Bo Wang
A1 - Wen-ying Zhang
A1 - Zhi-yuan Ouyang
A1 - Yi Guo
A1 - Bao-rong Zhang
A1 - Mei-ping Ding
J0 - Journal of Zhejiang University Science B
VL - 11
IS - 7
SP - 531
EP - 538
%@ 1673-1581
Y1 - 2010
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B0900380


Abstract: 
The 39-item Parkinson’;s Disease Questionnaire (PDQ-39) has been tested in many languages, but not in Chinese mainland. We aimed to assess the Chinese (mainland) version of the PDQ-39. Seventy-one subjects with Parkinson’s disease (PD) completed the PDQ-39 and the Medical Outcomes Study 36-item Short Form Health Survey (SF-36). All subjects were retested with the PDQ-39 a week later. The united Parkinson’s disease rating scale (UPDRS) and the Hoehn and Yahr (H & Y) scale were also used to evaluate the subjects. reliability was assessed by Cronbach’s α and intra-class correlation coefficient (ICC). validity was examined in terms of agreement with SF-36, UPDRS, and H & Y scales. The Chinese (mainland) version of the PDQ-39 demonstrated acceptable reliability (Cronbach’s α: 0.84–0.88; ICC: 0.56–0.82). The item-total correlations (0.33–0.88) and scaling success rates (77.56%) indicated satisfactory convergent and discriminant validity of the PDQ-39 items. The correlations between related constructs of the PDQ-39 and UPDRS (r=0.44–0.68) and between those of the PDQ-39 and SF-36 (r=(−0.46)–(−0.69)) were all statistically significant (P<0.01). Except for stigma, cognitions, and bodily discomfort, all other dimensions of the PDQ-39 significantly discriminated patients at different H & Y stages indicated by the H & Y scale. Although our observations indicate that some problematic subscales of this version of the PDQ-39 could be improved upon, this study suggests acceptable reliability and validity of the Chinese (mainland) version of the PDQ-39.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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