Table 4:

Linear regression between ICARS total score and CNS volumes: simple linear regression and linear regression including disease duration as a covariate

	SCA	Linear Regression Type	Coefficient B (95% CI)	R2	P
Cerebellar volume	3	Simple	−0.341 (−0.631 to −0.543)	0.29	.024a
		Including DD	−0.19 (−0.50 to −0.11)	0.46	.20
	6	Simple	−0.407 (−0.758 to −0.057)	0.30	.026a
		Including DD	−0.33 (−0.76 to −0.14)	0.31	.15
Brain stem volume	3	Simple	−2.01 (−3.141 to −0.879)	0.49	.002b
		Including DD	−1.51 (−2.7 to −0.31)	0.60	.02a
	6	Simple	−2.732 (−4.626 to −0.837)	0.39	.008b
		Including DD	−2.37 (−4.3 to −0.44)	0.46	.02a

^aSignificant with P < .05

^bSignificant with P < .01.