Researchers from the Center for Applied Genomics (CAG) at Children’s Hospital of Philadelphia (CHOP) have developed an algorithm that uses existing electronic health records to distinguish patients with attention-deficit/hyperactivity disorder (ADHD) alone versus patients who present with ADHD and a variety of related comorbid conditions. This method could help reduce the diagnostic odyssey that many patients with this condition face and help direct them toward more personalized treatment options. The findings were recently published in the journal Neurodevelopmental Disorders.