Table 4.

Correlations against the S-Factor

	SCA1	SCA2	SCA3	SCA6
SARA	r(80)=0.544, p<.001	r(79)=0.412, p<.001	r(201)=0.524, p<.001	r(70)=0.442, p<.001
BARS	r(12)=0.485, p=.079	r(15)=0.554, p=.021	r(27)=0.430, p=.020	r(11)=0.764, p=.002
Functional stage	r(66)=0.479, p<.001	r(76)=0.259, p=.022	r(167)=0.562, p<.001	r(70)=0.495, p<.001
CCFS	r(15)=−0.046, p=.860	N/A	r(46)=0.361, p=.012	N/A
25-foot walk test	r(65)=0.269, p=.028^	r(60)=0.116, p=.369^	r(164)=0.268, p<.001	r(60)=0.323, p=.011
CCAS-S raw	r(24)=−0.129, p=.529	r(15)=−0.372, p=.141	r(62)=−0.129, p=.308	r(13)=-0.05, p=.860
CCAS-S fail	r(24)=0.283, p=.161	r(15)=0.303, p=.236	r(60)=0.063, p=.627^	r(13)=0.003, p=.992

Notes: Number in brackets refers to number of degrees of freedom for the correlation; number of participants included in the correlation is 2 more than this value. SARA, Scale for the Assessment and Rating of Ataxia; BARS, Brief Ataxia Rating Scale; CCFS, Composite Cerebellar Functional Severity Score; CCAS-S, Cerebellar Cognitive Affective/Schmahmann Syndrome Scale

^{^}An outlier or outliers was excluded from the correlation due to having a notable influence on the analysis