Examining Substance Use and Suicide Risk Among Sexual Minority and Heterosexual Youth

Area of Science:

• Public Health
• Psychology
• Sociology

Background:

• Sexual minority youth face elevated risks for adverse health outcomes, including substance use and suicidality.
• Negative life events like bullying and violence exacerbate these health disparities.
• Understanding the interplay between sexual orientation and trauma is crucial for effective interventions.

Purpose of the Study:

• To investigate the predictive roles of sexual orientation and negative life events in substance use and suicidal ideation among youth.
• To examine how adverse life experiences mediate the relationship between sexual minority status and negative health outcomes.

Main Methods:

• Analysis of the nationally representative Youth Risk Behavior Survey (YRBS) dataset, including 15,612 participants.
• Logistic regression models to assess main effects of sexual minority status and adverse life events.
• Path analyses to explore mediating roles of negative life events in substance use and suicidality.

Main Results:

• Sexual minority youth reporting bullying or forced sex showed increased odds of tobacco, alcohol, and marijuana use.
• Intimate partner violence was associated with higher substance use among unsure and bisexual youth.
• Bullying and forced sex experiences were linked to increased suicidality in sexual minority youth.
• Path analyses confirmed indirect effects of sexual minority status on substance use and suicidality, mediated by adverse life experiences.

Conclusions:

• Sexual minority youth experience significant risks related to adverse life events, impacting substance use and suicidality.
• Findings underscore the necessity for trauma-informed prevention and intervention strategies tailored to this vulnerable population.
• Public health initiatives should address the unique challenges faced by sexual minority youth to mitigate negative health outcomes.