Table 3. Main and interaction effect of age and ADT on lesion volume and GMV in different age groups.

		β Estimate	SE	F	p-value
<73 years old	Lesion volume
	Age	-.130	.472	.076	.787
	ADT	-.331	.618	.286	.601
	Interaction	-.058	.486	.366	.700
	Grey Matter volume
	Age	-.663	.365	3.290	.088
	ADT	.267	.509	.276	.606
	Interaction	-.723	.375	1.980	.073
>73 years old	Lesion volume
	Age	.737	.222	11.075	.002
	ADT	.265	.396	.447	.507
	Interaction	.684	.219	7.148	.003
	Grey Matter volume
	Age	-.512	.200	6.542	.014
	ADT	-.066	.343	.037	.848
	Interaction	-.496	.204	3.358	.020