Table 4 Correlations between subcortical local shape volume and clinical measurements.

Clinical measurement	Subcortical structure	MDD			MDD_s			MDD_ns
Clinical measurement	Subcortical structure	r	cluster size	P	r	cluster size	p	r	cluster size	p
BIS (non-planning impulsivity)	L. Pallidum							−0.3	581	0.0400
	L. Putamen	0.3	414	0.0246				0.3	2409	0.0016
	L. Thalamus				0.3	974	0.0406
	R. Amygdala							0.3	1549	0.0318
	R. Putamen							0.3	2355	0.0022
	R. Thalamus	0.3	546	0.0108	0.3	1295	0.0144
BIS (motor impulsivity)	R. Caudate	0.3	313	0.0178
			258	0.0242
	R. Hippocampus				0.3	526	0.0408
BIS (attentional impulsivity)	L. Hippocampus				0.3	875	0.0136	−0.3	770	0.0230
	L. Thalamus							0.3	1573	0.0032
	R. Hippocampus				0.3	522	0.0408
	R. Putamen							0.3	2108	0.0050
BIS (total impulsivity)	L. Hippocampus				0.3	898	0.0144	−0.3	1196	0.0036
	L. Thalamus							0.3	801	0.0472
	R. Caudate				0.3	816	0.0384	0.3	729	0.0354
	R. Pallidum				0.3	438	0.0494
	R. Putamen							0.3	1950	0.0152
SSI (severity of suicidality)	L. Pallidum				0.3	427	0.0484	−0.3	529	0.0454
SSI (severity of suicidality)	R. Thalamus							0.3	1108	0.0330
HAM-D (severity of depression)	L. Thalamus							−0.3	970	0.0352
	R. Amygdala				0.3	1698	0.0232	−0.3	1685	0.0252
	R. Pallidum				0.3	651	0.0148
	R. Putamen				0.3	2162	0.0154	−0.3	1993	0.0128

MDD_s, MDD patients with suicidal ideation; MDD_ns, MDD patients without suicidal ideation; r, correlation coefficient;
p, corrected p-value after cluster-based correction; L, Left; R, Right.

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