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The Motivation for Alcohol Reward: Predictors of Progressive-Ratio Intravenous Alcohol Self-Administration in Humans

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Adolescent alcohol use trajectories: Predictors and subsequent problems.

Anna-Karin Danielsson¹, Peter Wennberg, Anders Tengström

¹Karolinska Institute, Department of Public Health Sciences, Division of Social Medicine, Stockholm, Sweden. anna-karin.danielsson@ki.se

Addictive Behaviors

|July 14, 2010

Summary

Adolescent alcohol consumption reveals four distinct drinking patterns, with high and suddenly increasing consumers facing more negative consequences. Understanding these trajectories aids in targeted prevention strategies for adolescent substance use.

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Area of Science:

Adolescent Health
Developmental Psychology
Substance Use Research

Background:

Adolescence is a critical period for the onset of alcohol use.
Understanding diverse drinking patterns is crucial for effective intervention.
Longitudinal data is needed to track developmental trajectories of alcohol consumption.

Purpose of the Study:

To identify distinct alcohol drinking trajectories from early to late adolescence.
To determine predictors of membership in specific trajectories.
To examine the link between trajectory membership and later negative alcohol-related consequences.

Main Methods:

Longitudinal cohort study of 1923 adolescents in Stockholm, Sweden (ages 14-19).
Cluster and multinomial logistic regression analyses were employed.
Data collected in 2001, 2002, 2003, and 2006.

Main Results:

Four alcohol consumption trajectories identified: low, gradually increasing, high, and suddenly increasing.
"High consumers" and "sudden increasers" showed higher consumption, heavy episodic drinking, and problems.
"Gradual increasers" were linked to smoking, easy alcohol access, and peer influence.

Conclusions:

Distinct adolescent alcohol drinking trajectories exist with varying risk profiles.
Early identification of high-risk trajectories is essential for timely intervention.
Peer influence and access to alcohol are significant factors in adolescent drinking patterns.