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- Title
Effects of low birth weight, maternal smoking in pregnancy and social class on the phenotypic manifestation of Attention Deficit Hyperactivity Disorder and associated antisocial behaviour: investigation in a clinical sample.
- Authors
Langley, Kate; Holmans, Peter A; van den Bree, Marianne B M; Thapar, Anita
- Abstract
Attention Deficit Hyperactivity Disorder (ADHD) is a genetically influenced condition although indicators of environmental risk including maternal smoking during pregnancy, low birth weight and low social class have also been found to be associated with the disorder. ADHD is a phenotypically heterogeneous disorder in terms of the predominant symptom types (inattention, hyperactive-impulsivity), their severity and comorbidity, notably Conduct Disorder. It is possible that these different clinical manifestations of the disorder may arise because of the differing effects of the environmental indicators of environmental risk. We set out to test this hypothesis.
- Publication
BMC psychiatry, 2007, Vol 7, p26
- ISSN
1471-244X
- Publication type
Journal Article
- DOI
10.1186/1471-244X-7-26