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Drinking experience uncovers genetic influences on alcohol expectancies across adolescence.
Addiction. 2015 Apr; 110(4):610-8.A

Abstract

AIMS

To test whether drinking onset moderates genetic and environmental contributions to individual differences in the etiology of alcohol expectancies across adolescence.

DESIGN

Longitudinal twin design.

SETTING

Community sample from Los Angeles, CA, USA.

PARTICIPANTS

A total of 1292 male and female twins, aged 11–18years, were assessed at 1 (n = 440), 2 (n = 587) or 3 (n = 265) occasions as part of the risk factors for the Antisocial Behavior Twin Study.

MEASUREMENTS

Social behavioral (SB) alcohol expectancies were measured using an abbreviated version of the Social Behavioral subscale from the Alcohol Expectancy Questionnaire for adolescents (AEQ-A). Drinking onset was defined as >1 full drink of alcohol.

FINDINGS

Alcohol expectancies increased over age and the increase became more rapid following onset of drinking. The importance of genetic and environmental influences on SB scores varied with age and drinking status, such that variation prior to drinking onset was attributed solely to environmental influences, whereas all post-onset variation was attributed to genetic influences. Results did not differ significantly by sex.

CONCLUSION

Only environmental factors explain beliefs about the social and behavioral consequences of alcohol use prior to drinking onset,whereas genetic factors explain an increasing proportion of the variance in these beliefs after drinking onset.

Authors+Show Affiliations

Division of Research, Kaiser Permanente Northern California, CA, USA. Kelly.c.young-wolff@kp.orgNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Twin Study

Language

eng

PubMed ID

25586461

Citation

Young-Wolff, Kelly C., et al. "Drinking Experience Uncovers Genetic Influences On Alcohol Expectancies Across Adolescence." Addiction (Abingdon, England), vol. 110, no. 4, 2015, pp. 610-8.
Young-Wolff KC, Wang P, Tuvblad C, et al. Drinking experience uncovers genetic influences on alcohol expectancies across adolescence. Addiction. 2015;110(4):610-8.
Young-Wolff, K. C., Wang, P., Tuvblad, C., Baker, L. A., Raine, A., & Prescott, C. A. (2015). Drinking experience uncovers genetic influences on alcohol expectancies across adolescence. Addiction (Abingdon, England), 110(4), 610-8. https://doi.org/10.1111/add.12845
Young-Wolff KC, et al. Drinking Experience Uncovers Genetic Influences On Alcohol Expectancies Across Adolescence. Addiction. 2015;110(4):610-8. PubMed PMID: 25586461.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Drinking experience uncovers genetic influences on alcohol expectancies across adolescence. AU - Young-Wolff,Kelly C, AU - Wang,Pan, AU - Tuvblad,Catherine, AU - Baker,Laura A, AU - Raine,Adrian, AU - Prescott,Carol A, PY - 2014/04/16/received PY - 2014/11/15/revised PY - 2014/12/13/accepted PY - 2015/1/15/entrez PY - 2015/1/15/pubmed PY - 2016/11/9/medline SP - 610 EP - 8 JF - Addiction (Abingdon, England) JO - Addiction VL - 110 IS - 4 N2 - AIMS: To test whether drinking onset moderates genetic and environmental contributions to individual differences in the etiology of alcohol expectancies across adolescence. DESIGN: Longitudinal twin design. SETTING: Community sample from Los Angeles, CA, USA. PARTICIPANTS: A total of 1292 male and female twins, aged 11–18years, were assessed at 1 (n = 440), 2 (n = 587) or 3 (n = 265) occasions as part of the risk factors for the Antisocial Behavior Twin Study. MEASUREMENTS: Social behavioral (SB) alcohol expectancies were measured using an abbreviated version of the Social Behavioral subscale from the Alcohol Expectancy Questionnaire for adolescents (AEQ-A). Drinking onset was defined as >1 full drink of alcohol. FINDINGS: Alcohol expectancies increased over age and the increase became more rapid following onset of drinking. The importance of genetic and environmental influences on SB scores varied with age and drinking status, such that variation prior to drinking onset was attributed solely to environmental influences, whereas all post-onset variation was attributed to genetic influences. Results did not differ significantly by sex. CONCLUSION: Only environmental factors explain beliefs about the social and behavioral consequences of alcohol use prior to drinking onset,whereas genetic factors explain an increasing proportion of the variance in these beliefs after drinking onset. SN - 1360-0443 UR - https://www.unboundmedicine.com/medline/citation/25586461/Drinking_experience_uncovers_genetic_influences_on_alcohol_expectancies_across_adolescence_ L2 - https://doi.org/10.1111/add.12845 DB - PRIME DP - Unbound Medicine ER -