Cited by 956Attention Deficit Hyperactivity DisorderChild and Adolescent Psychosocial and Emotional DevelopmentAutism Spectrum Disorder Research

The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

Attention-Deficit Hyperactivity Disorder: A Category or a Continuum? Genetic Analysis of a Large-Scale Twin Study

LEVY, FLORENCE, HAY, DAVID A., McSTEPHEN, MICHAEL, WOOD, CATHERINE, WALDMAN, IRWIN·1997·Journal of the American Academy of Child & Adolescent Psychiatry

Abstract

Objective To investigate heritability and continuum versus categorical approaches to attention-deficit hyperactivity disorder (ADHD), using a large-scale twin sample.Method A cohort of 1,938 families with twins and siblings aged 4 to 12 years, recruited from the Australian National Health and Medical Research Council Twin Registry, was assessed for ADHD using a DSM-III-R-based maternal rating scale. Probandwise concordance rates and correlations in monozygotic and dizygotic twins and siblings were calculated, and heritability was examined using the De Fries and Fulker regression technique.Results There was a narrow (additive) heritability of 0.75 to 0.91 which was robust across familial relationships (twin, sibling, and twin-sibling) and across definitions of ADHD as part of a continuum or as a disorder with various symptom cutoffs. There was no evidence for nonadditive genetic variation or for shared family environmental effects.Conclusions These findings suggest that ADHD is best viewed as the extreme of a behavior that varies genetically throughout the entire population rather than as a disorder with discrete determinants. This has implications for the classification of ADHD and for the identification of genes for this behavior, as well as implications for diagnosis and treatment.

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Crossref · 10.1097/00004583-199706000-00009

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Research works printed but not linked: 1

  1. Rhee SH, Waldman ID, Hay DA, Levy F (in press), Sex differences in genetic and environmental influences on DSM-III-R attention-deficit-hyperactivity disorder (ADHD). J Abnorm Psychol

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Metadata

Authors
LEVY, F., HAY, D. A., McSTEPHEN, M., WOOD, C., & WALDMAN, I.
Affiliations
  • Emory University (US)
  • UNSW Sydney (AU)
Venue
Journal of the American Academy of Child & Adolescent Psychiatry
Publisher
Elsevier BV
Published
1997-06
Volume
36
Issue
6
Pages
737-744
ISSN
0890-8567 (ISSN-L)
OpenAlex
W1989251017
Cited by
956
References
55
Citations by year
2026: 11 · 2025: 7 · 2024: 9 · 2023: 16 · 2022: 11 · 2021: 14 · 2020: 21 · 2019: 22 · 2018: 17 · 2017: 32 · 2016: 48 · 2015: 36 · 2014: 29 · 2013: 29 · 2012: 50
FWCI
24.92
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the American Academy of Child & Adolescent Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Social Sciences › Psychology › Clinical Psychology › Child and Adolescent Psychosocial and Emotional Development
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
attention deficit hyperactivity disorder, heritability, monozygotic twins, dizygotic twins, additive genetic effects, shared family environment, ADHD classification, gene identification
MeSH terms
Attention Deficit Disorder with Hyperactivity, Child, Child, Preschool, Family Health, Female, Humans, Male, Twins, Dizygotic, Twins, Monozygotic

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