Table 2.

Coefficients of regression equation by using ATXN2E2 and ATXN2E3, ATXN3, CACNA1A, or RAI1 as independent variables and lgAAO as dependent variables

Models	Unstandardized Coefficients		Beta*	t	P
	B	SE
using ATXN2E2 and ATXN2E3 as independent variables
(Constant)	2.931	0.197		14.854	<0.001
ATXN2E3	0.016	<0.001	3.967	5.475	<0.001
ATXN2E2	-0.002	<0.001	-4.463	-6.160	<0.001
Multiple linear regression with ATXN3 longer allele
(Constant)	3.023	0.210		14.368	<0.001
ATXN2E2	-0.002	<0.001	-4.630	-6.298	<0.001
ATXN2E3	0.017	<0.001	4.132	5.622	<0.001
ATXN3	-0.002	0.002	-0.089	-1.242	0.217
Multiple linear regression with CACNA1A longer allele
(Constant)	3.048	0.206		14.798	<0.001
ATXN2E2	-0.002	<0.001	-4.504	-6.273	<0.001
ATXN2E3	0.017	<0.001	3.998	5.569	<0.001
CACNA1A	-0.007	0.004	-0.127	-1.799	0.075
Multiple linear regression with RAI1 longer allele
(Constant)	3.261	0.260		12.537	<0.001
ATXN2E2	-0.002	<0.001	-4.525	-6.311	<0.001
ATXN2E3	0.017	<0.001	4.034	5.625	<0.001
RAI1	-0.027	0.014	-0.135	-1.921	0.057

*Standardized coefficients. B: Coefficient; SE: Standard error.