Validation of the Brazilian version of the neurological fatigue index for multiple sclerosis

Abstract: The Neurological Fatigue Index for Multiple Sclerosis (NFI-MS) is a new fatigue assessment instrument. The aim of this study was to cross-culturally adapt and assess the psychometric properties of the Brazilian version of the NFI-MS (NFI-MS/BR). Method Two hundred and forty subjects with MS were recruited for this study. The adaptation of the NFI-MS was performed by translation and back translation methodology. In psychometric analysis was performed the administration of the questionnaires Epworth Sleep Scale, Fatigue Severity Scale, Modified Fatigue Impact Scale, Multiple Sclerosis Impact Scale-29, NFI-MS/BR and Pittsburgh Sleep Quality Index with retest of the NFI-MS/BR after 7 days. Results Reliability was assessed (intraclass correlation coefficients between 0.77 and 0.86), and validity by testing 41 hypotheses about expected correlations between subscales and confirmed 36. The majority of correlations were demonstrated. Conclusion The NFI-MS/BR is a cross-culturally adapted, valid, and reliable instrument for assessing MS fatigue among Brazilian subjects.

Object Details

• Alternative title: Validação da versão brasileira do índice neurológico de fadiga na esclerose múltipla
• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Validation of the Brazilian version of the neurological fatigue index for multiple sclerosis ; volume:74 ; number:04 ; year:2016 ; pages:320-328 ; Arquivos de neuro-psiquiatria ; 74, Heft 04 (2016), 320-328

Contributors, Places and Time

• Contributor: Lopes, Josiane ; Lavado, Edson Lopes ; Kaimen-Maciel, Damacio Ramón

Further information

• DOI: 10.1590/0004-282X20160030
• URN: urn:nbn:de:101:1-2023101912231569833950
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:52 AM CEST