SNPs of Tier 1 set were collected from five independent resources: GWAS Catalog (CV:GWAScat), GWASdb, PheWAS, PGC2, and a multi-stage GWA study. These SNPs have strong evidence for their association with schizophrenia, reaching genome-wide significance in most cases. Raw records were remapped to the human reference genome hg19 if necessary. SNPs were then annotated systematically using the tool wANNOVAR. Raw records were displayed in the SNP page and the gene page in the same way as they were originally obtained.

SNPs of Tier 2 set were collected from the PGC2 summary results, with a nominal p-value <0.05. Tier 2 SNPs are searchable but not listed in the browse page because the number is too large.