https://scholars.lib.ntu.edu.tw/handle/123456789/483861
標題: | Measurement precision of the disability for back pain scale-by applying Rasch analysis | 作者: | Lu Y.-M. Wu Y.-Y. CHING-LIN HSIEH Lin C.-L. Hwang S.-L. Cheng K.-I. Lue Y.-J. |
公開日期: | 2013 | 卷: | 11 | 期: | 1 | 起(迄)頁: | 119 | 來源出版物: | Health and Quality of Life Outcomes | 摘要: | Background: The Oswestry Disability Index (ODI) is widely used for patients with back pain. However, few studies have examined its psychometric properties using modern measurement theory. The purpose of this study was to investigate the psychometric properties of the ODI in patients with back pain using Rasch analysis.Methods: A total of 408 patients with back pain participated in this cross-sectional study. Patients were recruited from the orthopedic, neurosurgery, rehabilitation departments and pain clinic of two hospitals. Rasch analysis was used to examine the Chinese version of ODI 2.1 for unidimensionality, item difficulty, category function, differential item functioning, and test information.Results: The fit statistics showed 10 items of the ODI fitted the model's expectation as a unidimensional scale. The ODI measured the different levels of functional limitation without skewing toward the lower or higher levels of disability. No significant ceiling and floor effects and gaps among the items were found. The reliability was high and the test information curve demonstrated precise dysfunction estimation.Conclusions: Our results showed that the ODI is a unidimensional questionnaire with high reliability. The ODI can precisely estimate the level of dysfunction, and the item difficulty of the ODI matches the person ability. For clinical application, using logits scores could precisely represent the disability level, and using the item difficulty could help clinicians design progressive programs for patients with back pain. ? 2013 Lu et al.; licensee BioMed Central Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880115707&doi=10.1186%2f1477-7525-11-119&partnerID=40&md5=fdecc7c05975cec7d15e5bf470a7e73f https://scholars.lib.ntu.edu.tw/handle/123456789/483861 |
ISSN: | 1477-7525 | DOI: | 10.1186/1477-7525-11-119 | SDG/關鍵字: | adult; aged; article; backache; cross-sectional study; female; functional disease; human; major clinical study; male; measurement precision; multicenter study; neurosurgery; orthopedic surgery; Oswestry Disability Index; pain clinic; probability; psychometry; questionnaire; Rasch analysis; rehabilitation center; reliability; Activities of Daily Living; Adult; Aged; Aged, 80 and over; Back Pain; Chronic Pain; Cross-Sectional Studies; Disability Evaluation; Female; Health Status Indicators; Humans; Male; Middle Aged; Reproducibility of Results |
顯示於: | 職能治療學系 |
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