TABLE 2.

Educational attainment polygenic scores (PGS‐EA) were significantly associated with cortical surface area (SA)

Cluster #	Cluster‐corrected p	Cluster size (number of vertices)	Cluster brain label
Without adjusting for parental education
1	.005	909	Left medial orbitofrontal gyrus, rostral ACC
2	.01	799	Left inferior frontal gyrus
After adjusting for parental education
1	.009	565	Left medial orbitofrontal gyrus, rostral ACC
2	.04	482	Left inferior frontal gyrus

Abbreviation: ACC, anterior cingulate cortex.

Note: Covariates were age, age², sex, scanner, principal components 1–10, and total brain volume.