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Addict Behav. 2012 Dec;37(12):1377-81. doi: 10.1016/j.addbeh.2012.06.012. Epub 2012 Jun 29.

Genetic and nonshared environmental factors affect the likelihood of being charged with driving under the influence (DUI) and driving while intoxicated (DWI).

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  • 1Florida State University, College of Criminology and Criminal Justice, Hecht House, 634 W. Call Street, Tallahassee, FL 32306-1127, United States.


Driving under the influence (DUI) and driving while intoxicated (DWI) are related to a range of serious health, legal, and financial costs. Given the costs to society of DUIs and DWIs, there has been interest in identifying the causes of DUIs and DWIs. The current study added to this existing knowledge base by estimating genetic and environmental effects on DUIs and DWIs in a sample of twins drawn from the National Longitudinal Study of Adolescent Health (Add Health). The results of the analyses revealed that genetic factors explained 53% of the variance in DUIs/DWIs and the nonshared environment explained 47% of the variance. Shared environmental factors explained none of the variance in DUIs/DWIs. We conclude with a discussion of the results, the limitations of the study, and how the findings might be compatible with policies designed to reduce DUIs and DWIs.

Copyright © 2012 Elsevier Ltd. All rights reserved.

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