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Tytuł:
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Differential item functioning of the Arm function in Multiple Sclerosis Questionnaire (AMSQ) by language, a study in six countries.
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Autorzy:
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Kalkers NF; Department of Neurology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands/Department of Neurology, OLVG, Amsterdam, The Netherlands.
Galan I; Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Hospital Universitario Vall d'Hebron, Barcelona, Spain.
Kerbrat A; Department of Neurology, Rennes University Hospital, Rennes, France.
Tacchino A; Scientific Research Area, Italian MS Foundation (FISM), Genoa, Italy.
Kamm CP; Neurology and Neurorehabilitation Center, Lucerne Cantonal Hospital, Lucerne, Switzerland/Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
O'Connell K; Department of Neurology, St. Vincent's University Hospital and University College Dublin, Dublin, Ireland.
McGuigan C; Department of Neurology, St Vincent's University Hospital and University College Dublin, Dublin, Ireland.
Edan G; Department of Neurology, Rennes University Hospital, Rennes, France.
Montalban X; Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Hospital Universitario Vall d'Hebron, Barcelona, Spain/Department of Neurology, St Michael's Hospital, University of Toronto, Toronto, ON, Canada.
Uitdehaag BM; Department of Neurology, Amsterdam UMC, Location VUmc, Amsterdam, The Netherlands.
Mokkink LB; Department of Epidemiology and Biostatistics, Amsterdam UMC, Location VUmc and Amsterdam Public Health Research Institute, Amsterdam, The Netherlands.
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Źródło:
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Multiple sclerosis (Houndmills, Basingstoke, England) [Mult Scler] 2021 Jan; Vol. 27 (1), pp. 90-96. Date of Electronic Publication: 2019 Dec 17.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: 2006- : London : SAGE Publications
Original Publication: Houndmills, Basingstoke, Hampshire, UK : Stockton Press, c1995-
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MeSH Terms:
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Language*
Multiple Sclerosis*
Arm ; Female ; Humans ; Male ; Psychometrics ; Surveys and Questionnaires
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Contributed Indexing:
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Keywords: Multiple sclerosis; arm function; differential item functioning; hand function; item response theory; patient-reported outcome measure; questionnaire; upper extremity function
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Entry Date(s):
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Date Created: 20191218 Date Completed: 20210924 Latest Revision: 20210924
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Update Code:
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20240105
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DOI:
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10.1177/1352458519895450
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PMID:
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31845614
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Background: The Arm function in Multiple Sclerosis Questionnaire (AMSQ) has been developed as a self-reported measure of arm and hand functioning for patients with multiple sclerosis (MS). The AMSQ was originally developed in Dutch and to date translated into five languages (i.e. English, German, Spanish, French, and Italian).
Objective: The aim of this study was to evaluate differential item functioning (DIF) of the AMSQ in these languages.
Methods: We performed DIF analyses, using "language" as the polytomous group variable. To detect DIF, logistic regression and item response theory principles were applied. Multiple logistic regression models were evaluated. We used a pseudo R 2 value of 0.02 or more as the DIF threshold.
Results: A total of 1733 male and female patients with all subtypes of MS were included. The DIF analysis for the whole dataset showed no uniform or non-uniform DIF on any of the 31 items. All R 2 values were below 0.02.
Conclusion: The AMSQ is validated in six languages. All items have the same meaning to MS patients in Dutch, English, German, Spanish, French, and Italian. This validation study enables use of the AMSQ in international studies, for monitoring treatment response and disease progression.
