Attention deficit/hyperactivity disorder (ADHD) is one of the most common childhood psychiatric disorders. The worldwide prevalence of ADHD in children has been reported at 4-7%. Numerous population- and clinical-based studies have reported that more than half of cases of ADHD have at least one psychiatric comorbidity. The presence of psychiatric comorbidities complicates the diagnosis, treatment, and prognosis of ADHD; thus, diagnosis of comorbidities is of great importance. Possible comorbidities should therefore be investigated in cases diagnosed with ADHD before treatment planning.
Part of the book: ADHD