Psychiatry · 2 h ago
ADHD symptoms below diagnostic threshold linked to higher mortality in cohort reanalysis
A secondary analysis of a UK birth cohort examined childhood ADHD symptom scores and premature mortality by age 58. Nearly all symptom-score groups had higher odds of premature mortality than the reference group, although the analysis does not establish causation or show that treatment changes this risk.
- Most symptom-score groups had higher mortality odds.
- Score 2: OR 1.4 (95% CI 1.1–1.6).
- Historical cohort analysis cannot establish causation.
- Authors caution against deprioritising milder ADHD without further research.
Researchers reanalysed data from the 1958 British birth cohort to assess whether premature mortality risk was limited to children with the most severe ADHD symptoms. Parent and teacher reports of symptoms at age 7 were combined into a score from 1 to 8, and each score was examined in relation to mortality by age 58. The authors say the cohort was unlikely to have received ADHD diagnosis or treatment in childhood; this analysis extends their earlier work, which used a narrower ADHD definition covering 3% of the population.
All symptom scores except 1 were associated with premature mortality. For a score of 2, reported in 2,523 participants (18.0% of the total sample), the odds ratio was 1.4 (95% CI 1.1–1.6). For a score of 8, reported in 66 participants (0.5%), it was 2.6 (95% CI 1.3–5.3). The authors argue that these findings do not support assuming that people with less severe symptoms have no elevated risk.
The findings are observational and concern a historical cohort, so they cannot establish that ADHD symptoms caused the excess mortality or that assessment or treatment would prevent it. The authors call for further research on outcomes including suicide and functioning before changing diagnostic definitions or deprioritising services for people with milder ADHD. The study reports no specific funding; one author disclosed unfunded advisory roles related to ADHD policy.
In practice
This historical UK cohort reanalysis found elevated odds of premature mortality across nearly all childhood ADHD symptom-score groups, including lower scores. It does not show that symptoms caused mortality or that assessment, treatment or risk management would reduce it, and the cohort largely predates routine ADHD diagnosis and treatment. The results therefore do not establish a new clinical intervention or justify changing diagnostic criteria, but they caution against assuming that lower symptom scores imply no associated risk when considering service prioritisation.
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The British Journal of Psychiatry: Rationing ADHD services? A potentially risky strategy ↗This is an automated AI-condensed summary that has not yet been reviewed by an editor. Always consult the full item at the original source.