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ADHD: Prevalence in Adults

Approximately 1/3 of children diagnosed with ADHD retain the diagnosis into adulthood.

The overall estimated prevalence of current adult ADHD is 4.4%.

  • The estimated lifetime prevalence of ADHD in U.S. adults aged 18-44 years is 8.1%.
  • The estimated worldwide prevalence of adult ADHD is estimated at about 2.8%.
  • Prevalence was higher for males (5.4%) vs. females (3.2%).
  • Non-Hispanic white people (5.4%) have a higher prevalence than all other race/ethnicity groups.

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Updated 2021-07-23

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Psychology

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