Adult ADHD and comorbid anxiety and depressive disorders: a review of etiology and treatment

Summary & key facts

This review says adult ADHD is varied and often happens with anxiety or depression. Many studies report high overlap, clear harms from having both, and many possible biological and cognitive causes. Treatments usually combine medicines with therapies like CBT or digital tools, but the causes are still not well understood and more research is needed.

Key facts:

• Around 5–7% of children have ADHD, and about 50–70% of those childhood cases persist into adulthood.
• Population studies estimate adult ADHD prevalence at about 2–3%; one meta-analysis reported 2.58% for persistent (childhood-onset) ADHD and 6.76% for a broader symptomatic definition.
• About 70% of adults with ADHD also have at least one other mental health condition (for example bipolar disorder, anxiety, substance use, or personality disorder).
• Anxiety disorders occur in roughly 25–50% of adults with ADHD; some studies reported rates around 47% or 56% in specific samples.
• Depressive disorders in adults with ADHD have been reported in studies at rates ranging from 18.6% to 53.3%.
• Adults who have ADHD plus anxiety or depression tend to have a higher overall disease burden, longer illness duration, and lower treatment effectiveness than people with only one of these conditions.
• Researchers point to multiple, interacting causes for these comorbidities, including genetics, brain biology (neurobiology), thinking and memory problems (neurocognition), and findings from brain imaging studies.
• Current care for adults with ADHD and co-occurring anxiety or depression often uses medicines together with non-drug treatments such as cognitive-behavioral therapy (CBT) and digital therapeutics; integrated approaches have shown symptom re

Abstract

ADHD is a highly heterogeneous disorder with a significant comorbidity rate. Recent research has elucidated the pathogenetic mechanisms of ADHD comorbid with depression and anxiety disorders from multiple perspectives. To improve patient functioning, enhance their quality of life, and guide more effective treatments, Further studies are needed to investigate the underlying causes of these comorbid conditions.

Topics

Attention Deficit Hyperactivity Disorder Child and Adolescent Psychosocial and Emotional Development Children's Physical and Motor Development

Categories

Health Sciences Medicine Psychiatry and Mental health

Tags

Anxiety Attention deficit hyperactivity disorder Clinical psychology Comorbidity Depression (economics) Economics Etiology Macroeconomics Major depressive disorder Medicine Mood Psychiatry Psychology