Document Detail


Origins and consequences of age at first drink. I. Associations with substance-use disorders, disinhibitory behavior and psychopathology, and P3 amplitude.
MedLine Citation:
PMID:  11505047     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Although an early age at first drink has been repeatedly associated with substantially elevated rates of alcoholism, the mechanisms underlying this association remain unclear. We investigated whether the association of age at first drink (AFD) with alcoholism was more consistent with the hypothesis that the former causes the latter or the hypothesis that both are manifestations of some common vulnerability. METHODS: We investigated whether substance use and mental health disorders, education, IQ, and personality were associated with AFD in a sample of 2670 adults; whether P3 amplitude was associated with AFD in a sample of 1127 17 year olds; and whether indicators of disinhibitory psychopathology assessed at age 11 predicted AFD by age 14 in a sample of 1343 adolescents. RESULTS: In adults, AFD was associated not only with alcohol dependence, but also with a broad array of indicators of disinhibitory behavior and psychopathology including nicotine dependence, illicit drug abuse and dependence, conduct disorder, antisocial personality disorder, underachievement in school, and the personality trait of constraint. In 17 year olds, AFD was also associated with reduced P3 amplitude, a well-documented psychophysiological marker of alcoholism risk. Finally, in the early-adolescence sample, measures of behavioral disinhibition, including oppositionality, hyperactivity/impulsivity, and inattentiveness assessed at age 11 predicted drinking onset by age 14. CONCLUSIONS: Our findings indicated that AFD is not specifically associated with alcoholism but rather is correlated with a broad range of indicators of disinhibited behavior and psychopathology. Moreover, individuals who first drink at a relatively early age manifest elevated rates of disinhibitory behavior and psychopathology before they first try alcohol. Taken together, these findings suggest that the association of AFD with alcoholism reflects, at least in part, a common underlying vulnerability to disinhibitory behavior. Whether an early AFD directly influences risk of adult alcoholism remains unclear.
Authors:
M McGue; W G Iacono; L N Legrand; S Malone; I Elkins
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.; Twin Study    
Journal Detail:
Title:  Alcoholism, clinical and experimental research     Volume:  25     ISSN:  0145-6008     ISO Abbreviation:  Alcohol. Clin. Exp. Res.     Publication Date:  2001 Aug 
Date Detail:
Created Date:  2001-08-15     Completed Date:  2001-09-27     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7707242     Medline TA:  Alcohol Clin Exp Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1156-65     Citation Subset:  IM    
Affiliation:
Department of Psychology, University of Minnesota, Minneapolis, Minnesota 55455, USA. mmcgue@tfs.psych.umn.edu
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Age Factors*
Alcohol Drinking*
Child
Cohort Studies
Diseases in Twins
Evoked Potentials
Female
Humans
Male
Mental Disorders / complications*
Personality Disorders / complications
Sex Characteristics
Substance-Related Disorders / complications*
Grant Support
ID/Acronym/Agency:
AA00175/AA/NIAAA NIH HHS; AA09367/AA/NIAAA NIH HHS; DA05147/DA/NIDA NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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