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Related Experiment Videos

The Type A-Type B classification in a community sample of problem drinkers: structural and predictive validity.

Kenneth M Carpenter1, Xinhua Liu, Deborah S Hasin

  • 1Columbia University College of Physicians and Surgeons, New York State Psychiatric Institute, NY 10032, USA. carpent@pi.cpmc.columbia.edu

Addictive Behaviors
|May 24, 2005
PubMed
Summary

The Type A-Type B classification model effectively identifies problem drinkers at risk for alcohol dependence. Type B drinkers without prior dependence were five times more likely to develop it, suggesting targeted prevention opportunities.

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Area of Science:

  • Addiction research
  • Psychiatric epidemiology
  • Public health

Background:

  • The Type A-Type B classification model has identified severe alcohol dependence subgroups.
  • Its utility in identifying at-risk problem drinkers in the general population is unexplored.

Purpose of the Study:

  • Investigate the Type A/Type B distinction in community problem drinkers.
  • Assess its predictive validity for alcohol dependence onset in individuals without prior dependence.

Main Methods:

  • Random digit dialing to recruit 876 participants from a US community.
  • Structured interviews (AUDADIS) at baseline and 1-year follow-up.
  • K-means cluster analysis to identify problem drinker subgroups.

Main Results:

Related Experiment Videos

  • A two-cluster solution identified Type A and Type B problem drinker subgroups.
  • Type B drinkers without prior dependence were 5x more likely to develop alcohol dependence within a year.
  • Baseline DSM-IV alcohol abuse diagnosis did not predict future dependence onset.

Conclusions:

  • The Type A-Type B model identifies untreated problem drinkers at risk for alcohol dependence.
  • This classification can aid in developing targeted prevention strategies for alcohol use disorders.