<p>The OCD Collaborative Genetics Association Study Group (OCGAS) was funded by NIMH to conduct a genome-wide association study to identify disease susceptibility loci of early-onset obsessive-compulsive disorder (OCD). Collaborators at Johns Hopkins, Brown, Columbia, MGH, UCLA, and NIMH evaluated 2,000 individuals with OCD and collected DNA from these individuals and both their parents. The genotyping and analyses was performed in two stages. In the first stage 1,065 families (comprising 1406 patients with OCD and 2895 individuals in total) were genotyped on the Illumina OmniExpress GWA (SNPs) panel at the JHU SNP Center.</p>

OCD Collaborative Genetic Association Study (OCGAS)

Obsessive-Compulsive Disorder study with SNP Genotypes (Array) data on dbGaP (2,614 participants)

OCD Collaborative Genetic Association Study (OCGAS)

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