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Genetic and environ...
Genetic and environmental contributions to stability and change of ADHD symptoms between 8 and 13 years of age : a longitudinal twin study
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- Larsson, Jan-Olov (författare)
- Karolinska Institutet
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- Larsson, Henrik, 1975- (författare)
- Karolinska Institutet
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- Lichtenstein, Paul (författare)
- Karolinska Institutet
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(creator_code:org_t)
- Philadelphia, USA : Lippincott Williams & Wilkins, 2004
- 2004
- Engelska.
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Ingår i: Journal of the American Academy of Child and Adolescent Psychiatry. - Philadelphia, USA : Lippincott Williams & Wilkins. - 0890-8567 .- 1527-5418. ; 43:10, s. 1267-1275
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Objective: To study the genetic and environmental contributions to stability and change of attention-deficit/hyperactivity disorder (ADHD) symptoms between 8 and 9 and 13 and 14 years of age.Method: The sample included 1,480 twin pairs born in Sweden between May 1985 and December 1986. At wave 1 in 1994, when twins were 8-9 years old, 1,106 (75%) of the parents responded to a mailed questionnaire, and at wave 2 when the twins were 13-14 years old, 1,063 (73%) responded. A checklist with 14 items based on the 14 DSM-III-R symptoms for ADHD was completed. Structural equation modeling was used to analyze the data.Results: A relatively high stability of ADHD symptoms over this 5-year period was found. This continuity was mainly due to the same genetic effects operating at both points in time. Change in symptoms between childhood and early adolescence was to a large extent due to new genetic effects in early adolescence but also due to new nonshared environmental effects that became important during adolescence.Conclusions: The genetic stability highlights the importance of the continuing search for genes and endophenotypes of ADHD.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Nyckelord
- Attention-deficit/hyperactivity disorder
- longitudinal study
- stability
- change
- twin study
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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