Differential family and peer environmental factors are related to severity and comorbidity in childresn with ADHD

C.J.M. Buschgens, M.A.G. van Aken, S.H.N. Swinkels, M.E. Altink, E.A. Fliers, N.N.J. Rommelse, R. Minderaa, J.A. Sergeant, S.V. Faraone, J. Buitelaar

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Abstract

Behavioral genetic studies imply that salient environmental influences operate within families, making siblings in a family different rather than similar. This study is the first one to examine differential sibling experiences (as measured with the Sibling Inventory of Differential Experience) and its effect on behavioral outcomes within ADHD families. Subjects were 45 Dutch ADHD probands and their unaffected siblings (n = 45) aged 10-18 years. ADHD probands and their unaffected siblings reported differences in sibling interaction, parental treatment, and peer characteristics. These nonshared environmental influences were related to both the severity of ADHD symptoms as well as to comorbid problem behaviors. These findings suggest that environmental influences that operate within ADHD families appear relevant to the severity of problem behaviors of ADHD children and their siblings. © 2008 Springer-Verlag.
Original languageEnglish
Pages (from-to)177-186
Number of pages10
JournalJournal of Neural Transmission
Volume115
Issue number2
Early online date16 Jan 2008
DOIs
Publication statusPublished - Feb 2008

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