Validation of Spanish version of 15‐item myasthenia gravis quality‐of‐life questionnaire
Autor: | Rodrigo Salinas, Carolina Vidal, Gil I. Wolfe, Gabriel Cea, Lorena Hoffmeister, Juan Pablo Contreras |
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Rok vydání: | 2021 |
Předmět: |
Adult
medicine.medical_specialty Adolescent Correlation coefficient Intraclass correlation Concurrent validity Spearman's rank correlation coefficient 03 medical and health sciences 0302 clinical medicine Quality of life Cronbach's alpha Surveys and Questionnaires Myasthenia Gravis Humans Medicine 030212 general & internal medicine Aged Language business.industry Reproducibility of Results Construct validity General Medicine Middle Aged Neurology Quality of Life Physical therapy Mann–Whitney U test Female Neurology (clinical) business 030217 neurology & neurosurgery |
Zdroj: | Acta Neurologica Scandinavica. 144:546-552 |
ISSN: | 1600-0404 0001-6314 |
Popis: | OBJECTIVES The aim of this study was to achieve the translation and cross-cultural adaptation of the MG-QOL15R questionnaire into Spanish and the analysis of its psychometric properties. MATERIALS AND METHODS We recruited patients with MG, ≥18 years old, whose mother tongue was Spanish. After the translation and cross-cultural adaptation of the MG-QOL15-R, the following tests were performed: internal consistency using the Cronbach-α coefficient and corrected item-total correlations; reproducibility with a test-retest analysis using intraclass correlation coefficients; and concurrent validity using Spearman's correlation coefficient of the Spanish language MG-QOL15R-S, Myasthenia Gravis Activity of Daily Living (MG-ADL) and Quantitative Myasthenia Gravis (QMG) scores. As an approximation to construct validity, the nonparametric Mann-Whitney U test was performed between MG-QOL15R-S scores according to the Myasthenia Gravis Foundation of America classification. RESULTS A total of 83 MG patients were enrolled, mean age 48.19 ± 17.25 years; 58 (69.9%) were women. The mean MG-QOL15R-S score was 11.3 ± 7.1. Cronbach-α coefficient was 0.92. Item-total correlation ranged between 0.43 and 0.75. Intraclass correlation coefficient was 0.80. The Spearman correlation coefficient was 0.637 (p-value |
Databáze: | OpenAIRE |
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