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A validation study of the Chinese wearing off questionnaire 9-symptom for Parkinson's disease.
MedLine Citation:
PMID:  21507565     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: Development of wearing off (WO) often goes unnoticed for both patients with Parkinson's disease (PD) and physicians due to the complexity of this phenomenon. A brief 9-symptom WO questionnaire (WOQ-9) was recently found to be highly sensitive in its detection. We aimed to validate a Chinese version WOQ-9 (CWOQ-9) among Chinese patients with PD. METHODS: We recruited 101 literate Chinese PD patients among 4 different neurology or movement disorders clinics in Hong Kong to participate in this study by completing the CWOQ-9. Clinical judgment by the specialists was considered the gold standard for diagnosing WO. RESULTS: The mean age (±SD) of the patients was 61 (±9) years and 35 (34.7%) of them were female. The disease duration was 7.4 (±5.4) years and 69 (68.3%) of them were diagnosed clinically to have WO by the specialists. The positive and negative predictive values, sensitivity and specificity of CWOQ-9 were 86%, 71%, 87%, and 69% respectively. The area under curve (AUC) was 0.78 (p<0.001). CONCLUSION: This simple patient questionnaire is a valid tool for the detection of WO among Chinese PD patients.
Authors:
A Chan; Y F Cheung; M Au Yeung; J Yeung; T H Chung; K L Tsang; J Chan; C Lau; P Kwan; Sheng-Han Kuo; V Mok
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-18
Journal Detail:
Title:  Clinical neurology and neurosurgery     Volume:  -     ISSN:  1872-6968     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502039     Medline TA:  Clin Neurol Neurosurg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier B.V.
Affiliation:
Department of Medicine and Therapeutics, Prince of Wales Hospital, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China.
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