Predictors of subgroups based on maximum drinks per occasion over six years for 833 adolescents and young adults in COGA

Marc A. Schuckit, Tom L. Smith, George P. Danko, Kathleen K. Bucholz, Arpana Agrawal, Danielle M. Dick, John Nurnberger, John Kramer, Michie Hesselbrock, Gretchen Saunders, Victor Hesselbrock

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Objective: A person's pattern of heavier drinking often changes over time, especially during the early drinking years, and refl ects complex relationships among a wide range of characteristics. Optimal understanding of the predictors of drinking during times of change might come from studies of trajectories of alcohol intake rather than crosssectional evaluations. Method: The patterns of maximum drinks per occasion were evaluated every 2 years between the average ages of 18 and 24 years for 833 subjects from the Collaborative Study on the Genetics of Alcoholism. Latent class growth analysis identifi ed latent classes for the trajectories of maximum drinks, and then logistic regression analyses highlighted variables that best predicted class membership. Results: Four latent classes were found, including Class 1 (69%), with about 5 maximum drinks per occasion across time; Class 2 (15%), with about 9 drinks at baseline that increased to 18 across time; Class 3 (10%), who began with a maximum of 18 drinks per occasion but decreased to 9 over time; and Class 4 (6%), with a maximum of about 22 drinks across time. The most consistent predictors of higher drinking classes were female sex, a low baseline level of response to alcohol, externalizing characteristics, prior alcohol and tobacco use, and heavier drinking peers. Conclusions: Four trajectory classes were observed and were best predicted by a combination of items that refl ected demography, substance use, level of response and externalizing phenotypes, and baseline environment and attitudes.

Original languageEnglish
Pages (from-to)24-34
Number of pages11
JournalJournal of Studies on Alcohol and Drugs
Volume75
Issue number1
StatePublished - Jan 2014

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young adult
Young Adult
Drinking
Trajectories
Alcohols
adolescent
Tobacco
alcohol
Logistics
class membership
Tobacco Use
demography
alcoholism
Alcoholism
nicotine
time
Logistic Models
logistics
Regression Analysis
Demography

ASJC Scopus subject areas

  • Health(social science)
  • Psychiatry and Mental health
  • Toxicology

Cite this

Schuckit, M. A., Smith, T. L., Danko, G. P., Bucholz, K. K., Agrawal, A., Dick, D. M., ... Hesselbrock, V. (2014). Predictors of subgroups based on maximum drinks per occasion over six years for 833 adolescents and young adults in COGA. Journal of Studies on Alcohol and Drugs, 75(1), 24-34.

Predictors of subgroups based on maximum drinks per occasion over six years for 833 adolescents and young adults in COGA. / Schuckit, Marc A.; Smith, Tom L.; Danko, George P.; Bucholz, Kathleen K.; Agrawal, Arpana; Dick, Danielle M.; Nurnberger, John; Kramer, John; Hesselbrock, Michie; Saunders, Gretchen; Hesselbrock, Victor.

In: Journal of Studies on Alcohol and Drugs, Vol. 75, No. 1, 01.2014, p. 24-34.

Research output: Contribution to journalArticle

Schuckit, MA, Smith, TL, Danko, GP, Bucholz, KK, Agrawal, A, Dick, DM, Nurnberger, J, Kramer, J, Hesselbrock, M, Saunders, G & Hesselbrock, V 2014, 'Predictors of subgroups based on maximum drinks per occasion over six years for 833 adolescents and young adults in COGA', Journal of Studies on Alcohol and Drugs, vol. 75, no. 1, pp. 24-34.
Schuckit, Marc A. ; Smith, Tom L. ; Danko, George P. ; Bucholz, Kathleen K. ; Agrawal, Arpana ; Dick, Danielle M. ; Nurnberger, John ; Kramer, John ; Hesselbrock, Michie ; Saunders, Gretchen ; Hesselbrock, Victor. / Predictors of subgroups based on maximum drinks per occasion over six years for 833 adolescents and young adults in COGA. In: Journal of Studies on Alcohol and Drugs. 2014 ; Vol. 75, No. 1. pp. 24-34.
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