Publication
Title
The modified low back pain disability questionnaire
Author
Abstract
Study design. Cross-sectional study. Objective. The goal of this study is to translate the English version of the Modified Low Back Pain Disability Questionnaire (MDQ) into a Dutch version and investigate its clinimetric properties for patients with nonspecific chronic low back pain (CLBP). Summary of Background Data. Fritz et al (2001) developed a modified version of the Oswestry Disability Questionnaire (ODI) to assess functional status and named it the MDQ. In this version, a question regarding employment and homemaking ability was substituted for the question related to sex life. Good clinimetric properties for the MDQ were identified but up until now it is not clear whether the clinimetric properties of the MDQ would change if it was translated into a Dutch version. Methods. Translation of the MDQ into Dutch was done in 4 steps. Test-retest reliability was investigated using the intraclass correlation coefficient (ICC) model. Validity was calculated using Pearson correlations and a 2-way analysis of variance for repeated measures. Finally, responsiveness was calculated with the area under the curve (AUC), minimal detectable change (MDC), and the standardized response mean (SRM). Results. A total of 80 completed questionnaires were collected in 3 different hospitals and a total of 43 patients finished a 9 weeks intervention period, completing the retest. Test-retest reliability was excellent with an ICC of 0.89 (95% confidence interval [CI], 0.74-0.95). To confirm the convergent validity, the MDQ answered all predefined hypothesises (r = -0.65-0.69/P = 0.01-0.00) and good results for construct validity were found (P = 0.02). The MDQ had an AUC of 0.64 (95% confidence interval [CI], 0.47-0.81), an MDC of 8.80 points, and a SRM of 0.65. Conclusion. The Dutch version of the MDQ shows good clinimetric properties and is shown to be usable in the assessment of the functional status of Dutch-speaking patients with nonspecific CLBP.
Language
English
Source (journal)
Spine. - Hagerstown, Md
Publication
Hagerstown, Md : 2018
ISSN
0362-2436
Volume/pages
43:5(2018), p. E292-E298
ISI
000440503500005
Pubmed ID
28658044
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 07.09.2018
Last edited 03.09.2021
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