Investigating the reasons behind a later or missed diagnosis of attention-deficit/hyperactivity disorder in young people: A population cohort study.

ABSTRACT:

Background

Attention Deficit Hyperactivity Disorder (ADHD) is a common neurodevelopmental condition, more often diagnosed in males. In many individuals, particularly females, ADHD is diagnosed later or missed, the reasons for this are not fully understood. Timely diagnosis is needed to provide support, management, and treatment to improve outcomes. This study aimed to understand why some young people with ADHD experience later or missed diagnosis and to consider sex differences.

Methods

This study included 9991 (females = 43.69%) individuals from the Millenium Cohort Study, a UK based population study which defined recognised ADHD by a parent-reported clinician diagnosis, and unrecognised ADHD by parent-reported questionnaires. Behavioural and emotional difficulties, engagem

SUBMITTER: Barclay I 

PROVIDER: S-EPMC12446718 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature