Similarly, another population-based nationwide cohort study including 649,043 births in Finland between 2004 and 2014 found no combined association of maternal obesity and insulin-treated PGDM with risk for offspring ADHD compared to normal-weight mothers without PGDM (HR = 1.00, 95% CI = 0.32–3.10) [12]. The gene discussed is INS; the disease is obesity due to melanocortin 4 receptor deficiency.