Premium
Translation, cross‐cultural adaptation, and validation of the french version of the 15‐item Myasthenia Gravis Quality Of life scale
Author(s) -
Birnbaum Simone,
Ghout Idir,
Demeret Sophie,
Bolgert Francis,
Eymard Bruno,
Sharshar Tarek,
Portero Pierre,
Hogrel JeanYves
Publication year - 2017
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.25381
Subject(s) - myasthenia gravis , cronbach's alpha , quality of life (healthcare) , reliability (semiconductor) , concurrent validity , medicine , scale (ratio) , physical therapy , adaptation (eye) , psychometrics , physical medicine and rehabilitation , psychology , internal consistency , clinical psychology , nursing , power (physics) , physics , quantum mechanics , neuroscience
Evaluation of quality of life (QOL) has become essential in healthcare. Currently no MG‐specific QOL measure exists in French. The aim of this study was to translate, culturally adapt, and evaluate the psychometric properties of the French version of the 15 ‐ Item Myasthenia Gravis Quality of Life Scale (MG‐QOL15) scale for French myasthenia patients. Methods: Translation and cross‐cultural adaption of the MG‐QOL15 was performed, followed by reliability and validity evaluations. Results: One hundred and twenty‐five patients were included. Internal consistency was excellent (Cronbach α = 0.92) as was test–retest reliability (ICC = 0.92, 95% CI 0.86–0.96). Concurrent validity was good for both clinical scores (myasthenic muscle score: ρ = –0.52, P < 0.001; Myasthenia Gravis–Activities of Daily Living scale score: ρ = 0.62, P < 0.001). Correlations were strongest for overall QOL (ρ = 0.62, P < 0.001) and physical health ( ρ = 0.67, P < 0.001) on the World Health Organization Quality of Life short score (WHO‐QOL BREF). Conclusion: The French version of the MG‐QOL15 is valid and reliable and is now available for use with French‐speaking patients. Muscle Nerve , 2016 Muscle Nerve 55: 639–645, 2017