Figure 1
From: A 3-year cohort study of the natural history of spinocerebellar ataxia type 6 in Japan
Relationships between the clinical scales used by the prospective study and by the IDR registry. (A) The relationship between the IDR-ICARS and SARA scales. The IDR-ICARS scores correlated well with the SARA scores (R = 0.892, P < .001, Pearson correlation test). (B) The relationship between the IDR-BI and BI scales. The IDR-BI scores correlated well with the BI scores (R = 0.928, P < .001, Pearson correlation test). (C) The relationship between the SARA and BI scales. The BI scores were inversely correlated with the SARA scores (R = −0.828, P < .001, Pearson correlation test). Abbreviations: BI = Barthel Index; ICARS = International Cooperative Ataxia Rating Scale; IDR = Intractable Diseases Research; SARA = Scale for the Assessment and Rating of Ataxia.