A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications

Attention Deficit Hyperactivity Disorder (ADHD) commonly co-occurs with Oppositional Defiant Disorder, Conduct Disorder and Reading Disability. Twin studies are an important approach to understanding and modelling potential causes of such comorbidity. Univariate and bivariate genetic models were fit...

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Main Authors: Martin, Neilson, Levy, Florence, Piek, Jan, Hay, David
Format: Journal Article
Published: Routledge 2006
Online Access:http://hdl.handle.net/20.500.11937/16671
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author Martin, Neilson
Levy, Florence
Piek, Jan
Hay, David
author_facet Martin, Neilson
Levy, Florence
Piek, Jan
Hay, David
author_sort Martin, Neilson
building Curtin Institutional Repository
collection Online Access
description Attention Deficit Hyperactivity Disorder (ADHD) commonly co-occurs with Oppositional Defiant Disorder, Conduct Disorder and Reading Disability. Twin studies are an important approach to understanding and modelling potential causes of such comorbidity. Univariate and bivariate genetic models were fitted to maternal report data from 2040 families of twins from the Australian Twin ADHD Project. All measures showed a heritability of over 0.8 and little role for the common family environment, except for the combined subtype of ADHD with a heritability of 0.69 and a common environment of 0.19. About one-third of the genetic variance in ADHD was shared with the other behaviours, the largest overlap being with Oppositional Defiant Disorder. Common environmental effects were shared between the combined ADHD subtype and the other measures. Some implications of these findings for home and school are discussed.
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publishDate 2006
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spelling curtin-20.500.11937-166712017-09-13T15:43:55Z A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications Martin, Neilson Levy, Florence Piek, Jan Hay, David Attention Deficit Hyperactivity Disorder (ADHD) commonly co-occurs with Oppositional Defiant Disorder, Conduct Disorder and Reading Disability. Twin studies are an important approach to understanding and modelling potential causes of such comorbidity. Univariate and bivariate genetic models were fitted to maternal report data from 2040 families of twins from the Australian Twin ADHD Project. All measures showed a heritability of over 0.8 and little role for the common family environment, except for the combined subtype of ADHD with a heritability of 0.69 and a common environment of 0.19. About one-third of the genetic variance in ADHD was shared with the other behaviours, the largest overlap being with Oppositional Defiant Disorder. Common environmental effects were shared between the combined ADHD subtype and the other measures. Some implications of these findings for home and school are discussed. 2006 Journal Article http://hdl.handle.net/20.500.11937/16671 10.1080/10349120500509992 Routledge restricted
spellingShingle Martin, Neilson
Levy, Florence
Piek, Jan
Hay, David
A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications
title A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications
title_full A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications
title_fullStr A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications
title_full_unstemmed A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications
title_short A genetic study of Attention-Deficit Hyperactivity Disorder, Conduct Disorder, Oppositional Defiant Disorder and Reading Disability: Aetiological overlaps and implications
title_sort genetic study of attention-deficit hyperactivity disorder, conduct disorder, oppositional defiant disorder and reading disability: aetiological overlaps and implications
url http://hdl.handle.net/20.500.11937/16671