<i>COMT</i> and <i>DAT1</i> genes are associated with hyperactivity and inattention traits in the 1993 Pelotas Birth Cohort: evidence of sex-specific combined effect

Abstract

This study demonstrates a role for <i>COMT</i> and <i>DAT1</i> genes on hyperactivity/inattention symptoms and provides further support for ADHD as the extreme of traits that vary in the population. It also confirms previous evidence for sexual dimorphism on <i>COMT</i> and <i>DAT1</i> gene expression.