Journal
JOURNAL OF THE AMERICAN ACADEMY OF CHILD AND ADOLESCENT PSYCHIATRY
Volume 42, Issue 6, Pages 710-719Publisher
ELSEVIER SCIENCE INC
DOI: 10.1097/01.CHI.0000046848.56865.54
Keywords
behavioral genetics; adolescence; disruptive behavior disorders; substance use disorders
Categories
Funding
- NIDA NIH HHS [K12 DA000357, DA 00357, DA 12845, DA 09842, DA 11015] Funding Source: Medline
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To review studies of adolescent substance use and abuse with genetically informative designs. Method: Twin and adoption studies of adolescent substance use were searched in Medline using keywords. Results: Of 19 studies that used adolescent samples, 18 examined initiation or use of substances and 1 examined abuse. Of the 7 retrospective studies using adult samples, 6 examined problematic behaviors such as substance dependence. Genetic and shared environmental influences on adolescent substance use are moderated by the specific substance, age, gender, specific contexts, religiousness, and region. There is some evidence for a common genetic influence on substance use across substances. Genetic influences on adolescent substance use may act through an influence on disinhibited behavior. Shared environment contributed to adolescent substance use consistently across all adolescent samples and common shared environmental influences influenced initiation into tobacco and alcohol use. While parental alcohol use had a small influence on adolescent shared environment, sibling influences were substantial. Conclusions: Twin and adoption studies have increased our understanding of genetic and environmental influences on adolescent substance use and its initiation; however, more studies focusing on clinical syndromes of abuse and dependence are needed.
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