Abstract
BackgroundDisputes exist regarding the psychometric properties of the Oswestry Disability Index (ODI). The present study was to examine the reliability, validity, and dimensionality of a Chinese version of the ODI version 2.1 in a sample of 225 adult orthopedic outpatients with chronic low back pain [mean age (SD): 40.7 (11.4) years].MethodsWe conducted reliability analysis, exploratory bifactor analysis, confirmatory factor analysis, and Mokken scale analysis of the ODI. To validate the ODI, we used the Short-Form 36 questionnaire (SF-36) and visual analog scale (VAS).ResultsThe reliability, and discriminant and construct validities of the ODI was good. The fit statistics of the unidimensional model of the ODI were inadequate. The ODI was a weak Mokken scale (Hs = 0.31).ConclusionsThe ODI was a reliable and valid scale suitable for measurement of disability in patients with low back pain. But the ODI seemed to be multidimensional that was against the use of the raw score of the ODI as a measurement of disability.
Highlights
Disputes exist regarding the psychometric properties of the Oswestry Disability visual analog scale (VAS) Visual Analog Short-Form 36 questionnaire (SF-36) Short-Form questionnaire (Scale) (Index) (ODI)
The Oswestry Disability VAS Visual Analog social functioning (SF)-36 Short-Form questionnaire (Scale) (Index) (ODI) is one of the most commonly used scales that assess the disability related to Low back pain (LBP) [2, 3]
The derived score of the ODI is a measurement of the level of disability related to LBP [3]
Summary
Disputes exist regarding the psychometric properties of the Oswestry Disability Index (ODI). The level of disability in patients with LBP is an important outcome measure for clinical practice and research [2]. The Oswestry Disability Index (ODI) is one of the most commonly used scales that assess the disability related to LBP [2, 3]. The derived score of the ODI is a measurement of the level of disability related to LBP [3]. To use the raw score of the ODI as a valid measurement, three assumptions are required: (1) the ODI is unidimensional; (2) all the items of the ODI are correlated with the measured construct (i.e. LBP-related disability); and (3) the point intervals
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
