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Table 5: Correlations between voxel-based analysis of MD and FA maps and motor assessment
Correlation Cluster Extent, mm³ P^* t Score Z Score Coordinates (Local Maxima) Areas
x y z
MD, SPPB 45648 0.048 5.58 4.67 16 −24 34 Corpus callosum and pericallosal white matter
MD, usual gait velocity 16536 0.043 5.14 4.37 6 14 20 Corpus callosum and pericallosal white matter
FA, SPPB 824 0.019 4.09 3.65 −6 −28 20 Corpus callosum splenium
FA, usual gait velocity 572 0.025 3.72 3.39 6 0 24 Corpus callosum genu
Note:—MD indicates mean diffusivity; FA, fractional anisotropy; SPPB, Short Physical Performance Battery.
* P is false discovery rate corrected for multiple comparisons.

Correlation	Cluster Extent, mm³	P^*	t Score	Z Score	Coordinates (Local Maxima)			Areas
Correlation	Cluster Extent, mm³	P^*	t Score	Z Score	x	y	z	Areas
MD, SPPB	45648	0.048	5.58	4.67	16	−24	34	Corpus callosum and pericallosal white matter
MD, usual gait velocity	16536	0.043	5.14	4.37	6	14	20	Corpus callosum and pericallosal white matter
FA, SPPB	824	0.019	4.09	3.65	−6	−28	20	Corpus callosum splenium
FA, usual gait velocity	572	0.025	3.72	3.39	6	0	24	Corpus callosum genu