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Test-retest reliability of the Friedreich's ataxia rating scale.


ABSTRACT: The modified Friedreich Ataxia Rating Scale (mFARS) is a disease specific, exam-based neurological rating scale commonly used as a outcome measure in clinical trials. While extensive clinimetric testing indicates it's validity in measuring disease progression, formal test-retest reliability was lacking. To fill this gap, we acquired results from screening and baseline visits of several large clinical trials and calculated intraclass correlation coefficients, coefficients of variance, standard error, and the minimally detectable changes. This study demonstrated excellent test-retest reliability of the mFARS, and it's upright stability subscore.

SUBMITTER: Rummey C 

PROVIDER: S-EPMC7480910 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Test-retest reliability of the Friedreich's ataxia rating scale.

Rummey Christian C   Zesiewicz Theresa A TA   Perez-Lloret Santiago S   Farmer Jennifer M JM   Pandolfo Massimo M   Lynch David R DR  

Annals of clinical and translational neurology 20200811 9


The modified Friedreich Ataxia Rating Scale (mFARS) is a disease specific, exam-based neurological rating scale commonly used as a outcome measure in clinical trials. While extensive clinimetric testing indicates it's validity in measuring disease progression, formal test-retest reliability was lacking. To fill this gap, we acquired results from screening and baseline visits of several large clinical trials and calculated intraclass correlation coefficients, coefficients of variance, standard er  ...[more]

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