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Using classification trees to profile adolescent smoking behaviors.

Panagiota Kitsantas1, Trent W Moore, David F Sly

  • 1Department of Health Administration and Policy, The College of Health and Human Services, 4400 University Drive Fairfax, VA 22030, USA. kitsantap@mail.ecu.edu

Addictive Behaviors
|May 9, 2006
PubMed
Summary

Adolescent smoking intention and behavior are predictable. Peer influence and alcohol consumption are key factors, highlighting shared predictors across different smoking stages.

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Area of Science:

  • Public Health
  • Behavioral Science
  • Adolescent Health

Background:

  • Adolescent smoking remains a significant public health concern.
  • Understanding predictors of smoking initiation and progression is crucial for effective interventions.
  • Previous research often examined smoking stages separately.

Purpose of the Study:

  • To profile adolescent smoking behaviors (intention, current, situational, established) using classification trees.
  • To explore the interactive nature of predictor variables in adolescent smoking.
  • To identify common predictors across different stages of smoking.

Main Methods:

  • Utilized classification tree analysis on a dataset of 3610 adolescents from the Florida Anti-Tobacco Media Evaluation Program.
  • Constructed three distinct classification trees: intention vs. no intention, current vs. non-smokers, and established vs. situational smokers.

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  • Analyzed cross-sectional telephone survey data.

    • Main Results:

    • Social and health risks, particularly in the context of peer smoking, were significant predictors of smoking intention.
    • Variables like peer smoking and alcohol consumption demonstrated consistent importance across all classification models.
    • The findings suggest overlap in predictors for smoking intention and more established smoking behaviors.

    Conclusions:

    • Adolescent smoking intention can be predicted using variables also associated with current or dependent smoking.
    • Peer influence and alcohol consumption are critical factors influencing adolescent smoking across various stages.
    • This research provides insights for targeted anti-tobacco interventions for adolescents.