ADHD

ADHD is a developmental condition described by persistent patterns of inattention and/or hyperactivity-impulsivity that begin in childhood and can affect life across settings and adulthood.

concept · seed
Early seed material. This page is not diagnosis or medical advice. Claims remain linked to their recorded evidence and uncertainty.

Scope

Includes

Excludes

Claims

There is no single diagnostic test; assessment considers history, impairment across settings, and alternative or co-occurring explanations.

high confidence

Uncertainties

Which supports remain useful as demands and ADHD presentation change across adulthood and ageing?

Why it matters: Evidence and services have historically emphasized children.

What would reduce it:
  • longitudinal adult studies
  • person-defined functional outcomes
  • research including older adults and varied support needs
Status: open

How do culture, gender, race, class, masking, and access pathways affect recognition and misdiagnosis?

Why it matters: Assessment tools and referral patterns may not transfer equitably.

What would reduce it:
  • measurement-invariance studies
  • community-led research with underserved groups
  • audits of referral, diagnosis, and outcome pathways
Status: open

Perspectives

National Institute of Mental Health

ADHD is a developmental disorder with persistent inattention, hyperactivity, and/or impulsivity that can interfere with daily life.

Related concepts

Sources

National Institute of Mental Health. Attention-Deficit/Hyperactivity Disorder: What You Need to Know.

Kind: authoritative_guidance · accessed 2026-08-10

Open source

US Centers for Disease Control and Prevention. Diagnosing ADHD (1 June 2026).

Kind: authoritative_guidance · accessed 2026-08-10

Open source

Provenance

Structured synthesis of cited public sources; no community review yet

Created 2026-08-10 · review state unreviewed_seed