Document Detail

Scale for the assessment and rating of ataxia: development of a new clinical scale.
MedLine Citation:
PMID:  16769946     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To develop a reliable and valid clinical scale measuring the severity of ataxia. METHODS: The authors devised the Scale for the Assessment and Rating of Ataxia (SARA) and tested it in two trials of 167 and 119 patients with spinocerebellar ataxia. RESULTS: The mean time to administer SARA in patients was 14.2 +/- 7.5 minutes (range 5 to 40). Interrater reliability was high, with an intraclass coefficient (ICC) of 0.98. Test-retest reliability was high with an ICC of 0.90. Internal consistency was high as indicated by Cronbach's alpha of 0.94. Factorial analysis revealed that the rating results were determined by a single factor. SARA ratings showed a linear relation to global assessments using a visual analogue scale, suggesting linearity of the scale (p < 0.0001, r(2) = 0.98). SARA score increased with the disease stage (p < 0.001) and was closely correlated with the Barthel Index (r = -0.80, p < 0.001) and part IV (functional assessment) of the Unified Huntington's Disease Rating Scale (UHDRS-IV) (r = -0.89, p < 0.0001), whereas it had only a weak correlation with disease duration (r = 0.34, p < 0.0002). CONCLUSIONS: The Scale for the Assessment and Rating of Ataxia is a reliable and valid measure of ataxia, making it an appropriate primary outcome measure for clinical trials.
T Schmitz-Hübsch; S Tezenas du Montcel; L Baliko; J Berciano; S Boesch; C Depondt; P Giunti; C Globas; J Infante; J-S Kang; B Kremer; C Mariotti; B Melegh; M Pandolfo; M Rakowicz; P Ribai; R Rola; L Schöls; S Szymanski; B P van de Warrenburg; A Dürr; T Klockgether; Roberto Fancellu
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Neurology     Volume:  66     ISSN:  1526-632X     ISO Abbreviation:  Neurology     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-13     Completed Date:  2006-07-05     Revised Date:  2007-04-04    
Medline Journal Info:
Nlm Unique ID:  0401060     Medline TA:  Neurology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1717-20     Citation Subset:  AIM; IM    
Department of Neurology, University Hospital of Bonn, Sigmund-Freud-Str. 25, D-53105 Bonn, Germany.
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MeSH Terms
Aged, 80 and over
Health Status Indicators*
Middle Aged
Neurologic Examination / methods*
Outcome Assessment (Health Care) / methods*
Reproducibility of Results
Sensitivity and Specificity
Severity of Illness Index*
Spinocerebellar Ataxias / classification*,  diagnosis*
Comment In:
Nat Clin Pract Neurol. 2007 Mar;3(3):136-7   [PMID:  17290240 ]
Erratum In:
Neurology. 2006 Jul 25;67(2):299
Note: Fancellu, Roberto [added]

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