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Responsiveness and minimal important change for the ProFitMap-neck questionnaire and the Neck Disability Index in women with neck-shoulder pain
University of Gävle, Centre for Musculoskeletal Research. University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science. Department of Community Medicine and Rehabilitation, Physiotherapy, Umea University, Umeå Sweden.ORCID iD: 0000-0001-7543-4397
University of Gävle, Centre for Musculoskeletal Research. University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science.
University of Gävle, Centre for Musculoskeletal Research. University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, Occupational health science.ORCID iD: 0000-0002-5055-0698
2016 (English)In: Quality of Life Research, ISSN 0962-9343, E-ISSN 1573-2649Article in journal (Refereed) Epub ahead of print
Abstract [en]

Purpose

The aim was to determine the responsiveness and minimal important change (MIC) of the questionnaire ProFitMap-neck that measures symptoms and functional limitations in people with neck pain. The same measurement properties were determined for Neck Disability Index (NDI) for comparison purposes.

Methods

Longitudinal data were derived from two randomized controlled trials, including 103 and 120 women with non-specific neck pain, with questionnaire measurements performed before and after interventions. Sensitivity and specificity to discriminate between improved and non-improved participants, based on categorization of a global rating of change scale (GRCS), were determined for the ProFitMap-neck indices and NDI by using area under receiver operator curves (AUC). Correlations between the GRCS anchor and change scores of the questionnaires were also used to assess responsiveness. The change score that showed the highest combination of sensitivity and specificity was set for MIC.

Results

The ProFitMap-neck indices showed similar responsiveness as NDI with AUC exceeding 0.70 (Range: ProFitMap-neck, 0.74 – 0.83; NDI, 0.75 – 0.86). The MIC in the two samples ranged between 6.6 – 13.6% for ProFitMap-neck indices and 5.2 and 6.3% for NDI. Both questionnaires had significant correlations with GRCS (Spearman’s rho 0.47 – 0.72).

Conclusions

Validity of change scores was demonstrated for the ProFitMap-neck indices with adequate ability to discriminate between improved and non-improved participants. Values of minimal important change were presented.

Place, publisher, year, edition, pages
2016.
Keyword [en]
Validity, anchor-based, physical function, discrimination, sensitivity, specificity
National Category
Health Sciences
Identifiers
URN: urn:nbn:se:hig:diva-20925DOI: 10.1007/s11136-016-1373-8PubMedID: 27506524ScopusID: 2-s2.0-84981289076OAI: oai:DiVA.org:hig-20925DiVA: diva2:889324
Available from: 2015-12-23 Created: 2015-12-23 Last updated: 2016-12-05Bibliographically approved

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Björklund, MartinWiitavaara, BirgittaHeiden, Marina
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