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Epidemiology Individuals with ADHD often have psychiatric comorbidities Individuals with ADHD often have psychiatric comorbidities


Up to 80% of adults with ADHD have at least one coexisting psychiatric disorder12,13

Lifetime psychiatric lifetime comorbidity is ~77% in patients with ADHD compared to ~46% in patients without ADHD13

Children and Adolescents

~50% of children and adolescents aged 4-17 years have at least 1 comorbid psychiatric condition14

Behavioral problems are the most common comorbidity in children14,15

25-75% have comorbid oppositional defiant disorder15
16.5% have comorbid conduct disorder14

Children with ADHD are more likely to have general anxiety and subtypes15

Children with ADHD may experience a depressive illness16

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What is ADHD? Prevalence



12. Sobanski E, Bruggemann D, Alm B, Kern S, Deschner M, Schubert T, et al. Psychiatric comorbidity and functional impairment in a clinically referred sample of adults with attention-deficit/hyperactivity disorder (ADHD). Eur Arch Psychiatry Clin Neurosci. 2007;257(7):371–377.
13 Katzman MA, Bilkey TS, Chokka PR, Fallu A, Klassen LJ. Adult ADHD and comorbid disorders: clinical implications of a dimensional approach. BMC Psychiatry. 2017;17:302.
14. Jensen CM, Steinhausen HC. Comorbid mental disorders in children and adolescents with attention-deficit/hyperactivity disorder in a large nationwide study. Atten Defic Hyperact Disord. 2015;7:27-38.
15. Masi L, Gignac M. ADHD and comorbid disorders in childhood psychiatric problems, medical problems, learning disorders and developmental coordination disorder. Clin Psychiatry. 2015;1:5.
16. CHADD. The National resource Center on ADHD. Depression. 2017. Available at