Genetics in psychiatry: Common variant association studies

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Abstract

Many psychiatric conditions and traits are associated with significant heritability. Genetic risk for psychiatric conditions encompass rare variants, identified due to major effect, as well as common variants, the latter analyzed by association analyses. We review guidelines for common variant association analyses, undertaking after assessing evidence of heritability. We highlight the importance of: suitably large sample sizes; an experimental design that controls for ancestry; careful data cleaning; correction for multiple testing; small P values for positive findings; assessment of effect size for positive findings; and, inclusion of an independent replication sample. We also note the importance of a critical discussion of any prior findings, biological follow-up where possible, and a means of accessing the raw data. © 2010 Buxbaum et al; licensee BioMed Central Ltd.

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Buxbaum, J., Baron-Cohen, S., & Devlin, B. (2010). Genetics in psychiatry: Common variant association studies. Molecular Autism. https://doi.org/10.1186/2040-2392-1-6

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