Abstract
OBJECTIVE: To examine the validity, reliability, and responsiveness of 3 commonly used questionnaires for assessing physical function (ie, Oswestry Disability Index [ODI], Quebec Back Pain Disability Scale [QBPDS], and Roland-Morris Disability Questionnaire [RMDQ]) in older patients undergoing chiropractic care for low back pain (LBP). DESIGN: Head-to-head clinimetric comparison. METHODS: Patients completed the ODI, QBPDS, and RMDQ at baseline and after 2 weeks of treatment. Reliability was evaluated for internal consistency (Cronbach α), test-retest reliability (interclass correlation coefficient [ICC]), and measurement error (standard error of measurement and smallest detectable change [SDC]). Structural validity was evaluated through unidimensional confirmatory factor analysis, and construct validity was investigated by a priori hypotheses with other measures. Responsiveness was evaluated by testing a priori hypotheses using data at baseline and at 2-week follow-up. RESULTS: Two hundred fourteen patients (53% males and 47% females) with a mean age of 66.2 years (standard deviation = 7.8 years) were included, of which 193 patients completed the 2-week follow-up for our responsiveness analysis. The RMDQ, ODI, and QBPDS showed sufficient internal consistency (Cronbach α of .89, .86, and .94, respectively) and test-retest reliability (ICC[2,1] of 0.85, 0.89, and 0.84, respectively). The SDC for the RMDQ was 6.9, for the ODI was 19.1, and for the QBPDS was 23.6, which are values larger than the minimal important change. None of the measures met all criteria for sufficient structural validity, but the RMDQ and ODI exhibited a partial unidimensional fit. The questionnaires had sufficient construct validity and responsiveness. CONCLUSION: The ODI, QBPDS, and RMDQ have similar measurement properties in older adults with LBP.
Original language | English |
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Pages (from-to) | 457-469 |
Number of pages | 13 |
Journal | Journal of Orthopaedic and Sports Physical Therapy |
Volume | 52 |
Issue number | 7 |
Early online date | 21 Jun 2022 |
DOIs | |
Publication status | Published - Jul 2022 |
Bibliographical note
Funding Information:1Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 2Amsterdam Movement Sciences Research Institute, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 3Amsterdam Public Health Institute, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 4Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Location VUmc, Amsterdam, the Netherlands. 5Department of General Practice, Erasmus University Medical Center, Rotterdam, the Netherlands. 6Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 7Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Aarhus, Denmark. This protocol has received ethical approval from the Medical Ethics Committee of the VU University Medical Center (ethics number 2017-618). Written informed consent was obtained from the patient for the publication of their individual details and accompanying images in this manuscript. The consent form is held by the authors’ institution in a secured server and is available for review by the editor in chief. This study is funded by the European Centre for Chiropractic Research Excellence (ECCRE), located in Odense, Denmark (grant number 01-2016-NL/MvT), and by the Nederlandse Chiropractoren Associatie (NCA), located in Joure, the Netherlands. Drs Jenks and Rubinstein work as chiropractors in private practice. Drs van Tulder and Rubinstein received grants from the European Chiropractors’ Union, the ECCRE, the Belgian Chiropractic Association (BVC), and the NCA for their positions at the Vrije Universiteit Amsterdam. The other authors certify that they have no affiliations with or financial involvement in any organization or entity with a direct financial interest in the subject matter or materials discussed in the article. Address correspondence to Dr Alan Jenks, Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, MF Building, Van der Boechorststraat 7, 1081 BT Amsterdam, the Netherlands. E-mail: [email protected] t Copyright ©2022 JOSPT ®, Inc
Publisher Copyright:
Copyright © 2022 JOSPT®, Inc
Funding
1Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 2Amsterdam Movement Sciences Research Institute, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 3Amsterdam Public Health Institute, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 4Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Location VUmc, Amsterdam, the Netherlands. 5Department of General Practice, Erasmus University Medical Center, Rotterdam, the Netherlands. 6Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands. 7Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Aarhus, Denmark. This protocol has received ethical approval from the Medical Ethics Committee of the VU University Medical Center (ethics number 2017-618). Written informed consent was obtained from the patient for the publication of their individual details and accompanying images in this manuscript. The consent form is held by the authors’ institution in a secured server and is available for review by the editor in chief. This study is funded by the European Centre for Chiropractic Research Excellence (ECCRE), located in Odense, Denmark (grant number 01-2016-NL/MvT), and by the Nederlandse Chiropractoren Associatie (NCA), located in Joure, the Netherlands. Drs Jenks and Rubinstein work as chiropractors in private practice. Drs van Tulder and Rubinstein received grants from the European Chiropractors’ Union, the ECCRE, the Belgian Chiropractic Association (BVC), and the NCA for their positions at the Vrije Universiteit Amsterdam. The other authors certify that they have no affiliations with or financial involvement in any organization or entity with a direct financial interest in the subject matter or materials discussed in the article. Address correspondence to Dr Alan Jenks, Department of Health Sciences, Faculty of Science, Vrije Universiteit Amsterdam, MF Building, Van der Boechorststraat 7, 1081 BT Amsterdam, the Netherlands. E-mail: [email protected] t Copyright ©2022 JOSPT ®, Inc
Keywords
- anatomy/spine
- clinical measurement (clinimetrics)
- low back/lumbar spine
- manual therapy/spine
- outcome measures