A groundbreaking study published in the American Journal of Psychiatry reveals that a school-based, personality-focused prevention program can significantly reduce the development of substance use disorders (SUDs) among adolescents. The five-year study demonstrated a 35% reduction in the annual increase of SUD rates among students who participated in the intervention.
The Co-Venture trial, a cluster randomized study, involved 31 high schools in the greater Montreal area. Beginning in 2012, all 7th-grade students enrolled in these schools participated in annual health behavior surveys over five years. Half of the schools were randomly selected to implement the PreVenture Program, a brief, two-session group cognitive-behavioral intervention tailored to students exhibiting one of four personality traits associated with early-onset substance misuse: impulsivity, sensation seeking, anxiety sensitivity, or hopelessness.
The study's findings are compelling. While the control group exhibited a steady increase in SUD rates over the five-year period, the intervention group showed a significantly reduced growth trajectory. Specifically, the control group had an odds ratio of 3.97 for developing SUDs, whereas the intervention group's odds ratio was 0.655, indicating a 35% reduction in the annual increase of SUD rates. Notably, significant differences between the groups emerged in the fourth and fifth years of assessment.
Dr. Patricia Conrod, Ph.D., the lead researcher, stated, "This study provides robust evidence that personality-targeted interventions can have a lasting impact on preventing substance use disorders in adolescents. By addressing specific personality risk factors, we can tailor prevention efforts to those most at risk, leading to more effective and enduring outcomes."
Importantly, secondary analyses indicated that the intervention did not significantly affect the growth of anxiety, depression, or overall mental health difficulties over the follow-up periods, suggesting that the program specifically targets substance use behaviors without adversely affecting other aspects of mental health.
These findings have significant implications for public health strategies aimed at reducing adolescent substance misuse. Implementing personality-focused prevention programs in schools could serve as a cost-effective and sustainable approach to curbing the onset of substance use disorders among youth.
For more detailed information, the full study is available in the American Journal of Psychiatry. https://psychiatryonline.org/doi/10.1176/appi.ajp.20240042#bibliography
About the Research Team:
The study was conducted by a team of experts in psychology and psychiatry, including Dr. Patricia Conrod, Ph.D. Université de Montréal, Dr. Sherry H. Stewart, Ph.D. Dalhousie University , Dr. Jean Seguin, Ph.D. Université de Montréal. , Dr. Robert Pihl, Ph.D. McGill University., Dr. Benoit Masse, Ph.D. Université de Montréal. , Sean Spinney, M.Sc. Université de Montréal. , and Dr. Samantha Lynch, Ph.D. Université de Montréal. Their collective expertise encompasses adolescent mental health, substance misuse prevention, and cognitive-behavioral interventions.
About the PreVenture Program:
The PreVenture Program is a brief, evidence-based intervention designed to target personality risk factors that predispose adolescents to substance misuse. By focusing on specific traits such as impulsivity, sensation seeking, anxiety sensitivity, and hopelessness, the program aims to equip youth with coping strategies tailored to their personality profiles, thereby reducing the likelihood of engaging in substance use.
This content has been updated on 31 January 2025 at 21 h 48 min.
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