Enrichment of (a) frontal lobe expression QTLs (p=0.001),
(b) cerebellum expression QTLs (p=0.033), (c) parietal
lobe expression QTLs (p=0.003), and (d) methylation QTLs
(p<0.001) among GWAS SNPs with p<0.01 (N=5321). Distribution of
the count of QTLs in 1,000 simulations are displayed, each matching the MAF distribution
of the OCD–associated SNPs. The black dot identifies the observed eQTL or mQTL
count in the OCD susceptibility–associated SNPs.