Cited by 84Attention Deficit Hyperactivity DisorderAutism Spectrum Disorder ResearchDevelopmental and Educational Neuropsychology

Adults with attention deficit hyperactivity disorder: an investigation of age-related differences in behavioural symptoms, neuropsychological function and co-morbidity

Bramham, J., Murphy, D. G. M., Xenitidis, K., Asherson, P., Hopkin, G., Young, S.·2012·Psychological Medicine

Abstract

BACKGROUND: The outcomes of attention deficit hyperactivity disorder (ADHD) have been studied extensively in the first decades of life, but less is known about ADHD in adulthood. Hence we investigated cross-sectional age-related differences in behavioural symptoms, neuropsychological function and severity of co-morbid disorders within a clinically referred adult ADHD population. METHOD: We subdivided 439 referrals of individuals with ADHD (aged 16-50 years) into four groups based on decade of life and matched for childhood ADHD severity. We compared the groups on measures of self- and informant-rated current behavioural ADHD symptoms, neuropsychological performance, and self-rated co-morbid mood and anxiety symptoms. RESULTS: There was a significant age-related reduction in the severity of all ADHD symptoms based on informant-ratings. In contrast, according to self-ratings, inattentive symptoms increased with age. Neuropsychological function improved across age groups on measures of selective attention and response inhibition. There was a mild correlation between the severity of depression symptoms and increasing age. CONCLUSIONS: This observational study suggests that, in adulthood, ADHD symptoms as measured using informant-ratings and neuropsychological measures continue to improve with increasing age. However the subjective experience of people with ADHD is that their symptoms worsen. This dichotomy may be partially explained by the presence of co-morbid affective symptoms. The main limitation of the study is that it is cross-sectional rather than longitudinal, and the latter design would provide more conclusive evidence regarding age-related changes in an adult ADHD population.

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Crossref · 10.1017/s0033291712000219

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Authors
Bramham, J., Murphy, D. G. M., Xenitidis, K., Asherson, P., Hopkin, G., & Young, S.
Affiliations
  • University College Dublin (IE)
  • King's College London (GB)
Corresponding author
Bramham, J.
Venue
Psychological Medicine
Published
2012-02-28
Volume
42
Issue
10
Pages
2225-2234
ISSN
  • 0033-2917 (ISSN-L)
  • 1469-8978
OpenAlex
W2062577295
Cited by
84
References
49
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 12 · 2022: 7 · 2021: 5 · 2020: 4 · 2019: 2 · 2018: 4 · 2017: 9 · 2016: 11 · 2015: 4 · 2014: 5 · 2013: 3 · 2012: 6
FWCI
4.10
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Eli Lilly and Company
  • National Institute for Health and Care Research (RP-PG-0606-1045)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
Keywords
adult ADHD, age-related changes, behavioural symptoms, neuropsychological performance, selective attention, response inhibition, comorbidities, depression, anxiety, informant ratings, self-reported symptoms, inattentive symptoms
MeSH terms
Adolescent, Adult, Affective Symptoms, Age Factors, Analysis of Variance, Attention Deficit Disorder with Hyperactivity, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Neuropsychological Tests, Surveys and Questionnaires, Severity of Illness Index, Comorbidity, Young Adult

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