FBN1 and major depressive disorder: Supplementary Table S2 shows the genotyping call rate and p value for Hardy–Weinberg equilibrium for SNP rs193922209. To our knowledge, this is the first GWAS to discover the genome-wide significance level variant in the FBN1 gene for probable MDD. We confirmed that these GWAS results are novel for probable MDD using the NHGRI-EBI GWAS Catalog [41].