Table 4. Summary statistics of aMAT for analyzing four additional IDP sets.

	IDPs	Sig SNPs	Loci	Lead SNPs	Novel SNPs
Area	206	2264	25	28	19
Thickness	208	39	2	2	0
Freesurf	472	2820	23	29	15
ROIs	138	2721	34	38	25

IDPs, Sig SNPs, Loci, Lead SNPs are the number of IDPs in the set, number of genome-wide significant SNPs identified by aMAT, number of independent risk loci, number of lead SNPs in the identified risk loci, respectively. Novel SNPs is the number of lead SNPs that were ignored by any individual GWAS at genome-wide significance level (5 × 10⁻⁸).