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

查看全文 作　　者：Wei LUO Xiao-hong GUI Bo WANG Wen-ying ZHANG Zhi-yuan OUYANG Yi GUO Bao-rong ZHANG Mei-ping [1]DING 高影响力作者 机构地区：[1]Department of Neurology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China高影响力机构 出　　处：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》索引2010年第11卷第7期,共8页高影响力期刊 基　　金：Project supported by the Science and Technology Bureau of Zhejiang Province of China (No. 2007C33004) and Pao Yu-kong and Pao Zhao-long Scholarship for Chinese Students Studying Abroad 摘　　要：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 Cron- bach'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. 关 键 词：39-item Parkinson’s Disease Questionnaire (PDQ-39) Quality of life Validity RELIABILITY
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