Childhood predictors of adolescent and young adult outcome in ADHD

Celeste H M Cheung, Fruhling Rijdijk, Gráinne McLoughlin, Stephen V Faraone, Philip Asherson, Jonna Kuntsi

Research output: Contribution to journalArticlepeer-review

92 Citations (Scopus)

Abstract

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) often persists into adulthood, but it remains unclear which childhood factors predict future outcome.

AIM: To identify childhood predictors of ADHD outcome using both dimensional and categorical approaches.

METHODS: 116 adolescents and young adults with childhood ADHD were followed up on average 6.6 years later. ADHD outcome variables were interview-based parent-reported ADHD symptoms and impairment. Childhood predictors included parent- and teacher-rated ADHD symptoms and co-occurring behaviours; actigraph measures of activity level; socio-economic status (SES); and cognitive measures previously associated with ADHD.

RESULTS: Of the sample, 79% continued to meet clinical criteria of ADHD in adolescence and young adulthood. Higher parent-rated ADHD symptoms and movement intensity in childhood, but not teacher-rated symptoms, predicted ADHD symptoms at follow up. Co-occurring symptoms of oppositional behaviours, anxiety, social and emotional problems were also significant predictors, but these effects disappeared after controlling for ADHD symptoms. IQ and SES were significant predictors of both ADHD symptoms and impairment at follow up, but no other cognitive measures significantly predicted outcome.

CONCLUSIONS: SES and IQ emerge as potential moderators for the prognosis of ADHD. Childhood severity of ADHD symptoms, as measured by parent ratings and actigraph movement intensity, also predicts later ADHD outcome. These factors should be considered when identifying ADHD children at most risk of poor long-term outcomes and for the development of interventions to improve prognosis.

Original languageEnglish
Pages (from-to)92-100
Number of pages9
JournalJournal of psychiatric research
Volume62
DOIs
Publication statusPublished - Mar 2015

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