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Transtheoretical Model and substance use in HIV-positive youth
S Naar-King1, K Wright, J T Parsons
1The Carman & Ann Adams Department of Pediatrics, Wayne State University, Detriot, MI, USA. snaarkin@med.wayne.edu
This study found that self-efficacy and social support are key factors in predicting substance use among HIV-positive youth. Interventions boosting these areas can help reduce alcohol and marijuana use in this population.
Area of Science:
- Psychology
- Public Health
- Addiction Medicine
Background:
- HIV-positive youth face unique challenges impacting their health behaviors.
- Substance use is a significant concern in this demographic, potentially affecting treatment adherence and health outcomes.
- The Transtheoretical Model (TTM) offers a framework for understanding behavior change.
Purpose of the Study:
- To evaluate the Transtheoretical Model (TTM) constructs in predicting alcohol and other drug use among HIV-positive adolescents and young adults.
- To examine the mediating roles of self-efficacy and social support in the relationship between stage of change and substance use.
- To identify potential targets for interventions aimed at reducing substance use in this vulnerable population.
Main Methods:
- A cross-sectional study involving 64 HIV-positive youth (ages 16-25).
- Data collection through questionnaires and interviews assessing substance use, stage of change, self-efficacy, emotional distress, and social support.
- Structural equation modeling with small-sample appropriate standard errors was employed for analysis.
Main Results:
- Self-efficacy significantly mediated the relationship between stage of change and alcohol use.
- Self-efficacy also mediated the relationship between social support and alcohol use.
- Similar mediation patterns were observed for marijuana use, with models explaining substantial variance (47% for alcohol, 69% for marijuana).
Conclusions:
- The findings support the applicability of the Transtheoretical Model (TTM) in understanding substance use among HIV-positive youth.
- Interventions focused on enhancing self-efficacy and social support show promise for reducing alcohol and marijuana use.
- These results underscore the importance of tailored, psychosocial interventions for this population.
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