The interaction term between maternal prenatal anxiety and maternal rs4680 did not predict child working memory (interaction terms all p>0.495) or child ADHD symptoms at 4 (interaction terms all p>0.333) or 15 years (interaction terms all p>0.565), and including the interaction by maternal COMT genotype did not substantively alter the interaction effect for child COMT genotype. Here, COMT is linked to attention deficit-hyperactivity disorder.