<p>This study is part of the Molecular Genetics of Schizophrenia (MGS) genome wide association study (GWAS) of 3,972 cases
 (2,686 EA and 1,286 AA) and 3,629 controls (2,656 EA and 973 AA) (analyzed sample remaining after quality control exclusions),
 comprised of European ancestry (EA) and African American (AA) samples.  We genotyped about half of the EA sample and almost all
 of the AA sample under the auspices of the Genetic Association Information Network (GAIN) with the Affymetrix 6.0 platform at the
 Broad Institute.  The remainder of the included sample was also genotyped with the Affymetrix 6.0 platform at the Broad Institute,
 and we refer to this component as the nonGAIN sample.  Cases met criteria for schizophrenia (SCZ) or schizoaffective disorder
 (SA) per the Diagnostic and Statistical Manual of Mental Disorders version IV (DSM-IV) for all three collections (SGI, MGS1,
 and MGS2) comprising these cases.  However, for the older SGI collection, codes for the secondary diagnoses refer to the older
 DSM-III-R version.  Controls were screened briefly and excluded if they endorsed a history of these illnesses.</p>

Molecular Genetics of Schizophrenia - nonGAIN Sample (MGS_nonGAIN)

Schizophrenia study with SNP Genotypes (Array) data on dbGaP (3,029 participants)