Journal article
The mechanical and inflammatory low back pain (MIL) index: development and validation
BMC Musculoskeletal Disorders, Vol.15, 12
2014
Abstract
Background: The purpose of this study was the development of a valid and reliable "Mechanical and Inflammatory Low Back Pain Index" (MIL) for assessment of non-specific low back pain (NSLBP). This 7-item tool assists practitioners in determining whether symptoms are predominantly mechanical or inflammatory. Methods Participants (n= 170, 96 females, age = 38±14 years-old) with NSLP were referred to two Spanish physiotherapy clinics and completed the MIL and the following measures: the Roland Morris Questionnaire (RMQ), SF-12 and "Backache Index" (BAI) physical assessment test. For test-retest reliability, 37 consecutive patients were assessed at baseline and three days later during a non-treatment period. Face and content validity, practical characteristics, factor analysis, internal consistency, discriminant validity and convergent validity were assessed from the full sample. Results A total of 27 potential items that had been identified for inclusion were subsequently reduced to 11 by an expert panel. Four items were then removed due to cross-loading under confirmatory factor analysis where a two-factor model yielded a good fit to the data (χ2 = 14.80, df = 13, p = 0.37, CFI = 0.98, and RMSEA = 0.029). The internal consistency was moderate (α = 0.68 for MLBP; 0.72 for ILBP), test-retest reliability high (ICC = 0.91; 95%CI = 0.88-0.93) and discriminant validity good for either MLBP (AUC = 0.74) and ILBP (AUC = 0.92). Convergent validity was demonstrated through similar but weak correlations between the ILBP and both the RMQ and BAI (r = 0.34, p less than 0.001) and the MLBP and BAI (r = 0.38, p less than 0.001). Conclusions The MIL is a valid and reliable clinical tool for patients with NSLBP that discriminates between mechanical and inflammatory LBP.
Details
- Title
- The mechanical and inflammatory low back pain (MIL) index: development and validation
- Authors
- Antonio I Cuesta-Vargas (Author) - Queensland University of TechnologyAndre Farasyn (Author) - Vrije Universiteit Brussel (VUB), BelgiumCharles P Gabel (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringJuan Luciano (Author) - Sant Boi de Llobregat, Spain
- Publication details
- BMC Musculoskeletal Disorders, Vol.15, 12; 18
- Publisher
- BioMed Central Ltd.
- Date published
- 2014
- DOI
- 10.1186/1471-2474-15-12
- ISSN
- 1471-2474
- Copyright note
- Copyright © 2014 Cuesta-Vargas et al.; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
- Language
- English
- Record Identifier
- 99449094102621
- Output Type
- Journal article
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