We used multivariate binary logistic regression, which showed that in our groups that received metformin (OR of 2.08, 95% CI 1.32-3.27, <i>p</i> = 0.001) and insulin (OR of 2.25, 95% CI 1.00-5.04, <i>p</i> = 0.04), we observed a positive association with ADHD symptoms. This evidence concerns the gene INS and attention deficit-hyperactivity disorder.