Adults with persistent ADHD (childhood onset), worldwide, 2020

139.84 million

adults, worldwide, adults

“By adjusting for the global demographic structure in 2020, the prevalence of persistent adult ADHD was 2.58% and that of symptomatic adult ADHD was 6.76%, translating to 139.84 million and 366.33 million affected adults in 2020 globally.”

Song et al., The prevalence of adult ADHD: a global systematic review and meta-analysis, J Glob Health 2021, 2021

Kind of source

Peer-reviewed study

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2026-11-06

Daily check

Quote found at the source on 2026-11-06

What to know

The 139.84 million goes with persistent adult ADHD (2.58%); 366.33 million goes with symptomatic adult ADHD regardless of childhood onset (6.76%, see the other observation).

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ADHD