Table 4. Results of Spearman correlation analysis between the MWF of WM ROIs and the susceptibility of BG ROIs.

r	MWF
	ROI	GCC			BCC			SCC			OT			ALIC			PLIC
		L	R		L	R		L	R		L	R		L	R		L	R
Susceptibility (young), N=8	CN
	L	−0.299	−0.766*		−0.323	−0.216		0.228	−0.036		0.240	0.180		0.168	−0.108		0.060	−0.240
	R	0.108	−0.335		−0.252	0.024		−0.156	−0.587		0.096	−0.395		0.192	0.012		0.299	0.168
	GP
	L	0.060	0.216		0.084	0.168		0.252	−0.491		−0.359	−0.371		0.216	0.036		0.204	0.168
	R	0.395	0.072		0.132	0.263		0.323	−0.299		−0.311	−0.204		0.335	0.108		0.275	0.096
	PU
	L	0.156	−0.240		−0.012	0.048		0.443	−0.036		−0.168	0.156		0.383	−0.108		−0.084	−0.048
	R	0.275	−0.072		−0.228	−0.216		0.036	−0.180		−0.503	−0.132		0.096	−0.132		−0.252	−0.359
Susceptibility (old), N=8	CN
	L	−0.167	0.000		0.119	0.238		0.619	−0.024		−0.286	−0.619		0.714*	0.810*		0.690	0.143
	R	−0.429	−0.095		0.024	−0.119		0.167	−0.286		0.286	−0.167		0.738*	0.619		0.619	0.714*
	GP
	L	−0.929**	−0.738*		−0.262	−0.524		−0.095	−0.738*		0.476	0.262		0.524	0.190		0.286	0.548
	R	−0.786*	−0.548		−0.357	−0.548		−0.214	−0.524		0.357	−0.048		0.619	0.429		0.190	0.548
	PU
	L	−0.667	−0.333		−0.071	−0.286		−0.095	−0.524		0.548	−0.238		0.667	0.500		0.238	0.381
	R	−0.619	−0.381		−0.500	−0.476		−0.095	−0.095		0.190	0.095		0.429	0.286		0.143	0.762*
Susceptibility (pooled), N=16	CN
	L	0.227	0.081		0.233	0.346		0.467	0.330		0.300	0.244		0.776***	0.731**		0.581*	0.468
	R	0.359	0.160		0.235	0.290		0.155	0.182		0.462	0.262		0.808**	0.808***		0.623*	0.668**
	GP
	L	0.174	0.069		0.277	0.278		0.269	0.026		0.391	0.347		0.773***	0.687**		0.537*	0.677**
	R	0.224	0.069		0.230	0.255		0.231	0.071		0.350	0.265		0.799***	0.723**		0.528*	0.648**
	PU
	L	0.353	0.128		0.259	0.293		0.199	0.265		0.403	0.362		0.808***	0.805**		0.458	0.603*
	R	0.147	−0.013		−0.091	0.004		0.016	0.162		0.121	0.144		0.628**	0.631**		0.260	0.453

MWF, myelin water fraction; WM, white matter; BG, basal ganglia; GCC, the genu of corpus callosum; BCC, the body of the corpus callosum; SCC, the splenium of the corpus callosum; OT, optic tract; ALIC, the anterior limb of the internal capsule; PLIC, the posterior limb of the internal capsule; CN, caudate nucleus; GP, globus pallidus; PU, putamen; r, correlation coefficient; L, left hemisphere; R, right hemisphere. *P<0.05, **P<0.01, ***P<0.001.