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American Indian tribal members with methamphetamine as their primary drug and high posttraumatic stress disorder (PTSD) symptoms face significant substance use consequences. Targeted interventions for stimulant use and trauma are crucial for improving health outcomes.

Keywords:
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Area of Science:

  • Addiction research
  • Mental health disparities
  • Indigenous health

Background:

  • Investigating the complex interplay between substance use, trauma, and adverse consequences within American Indian communities.
  • Addressing the specific challenges faced by American Indian individuals with current substance use disorders.

Purpose of the Study:

  • To explore the relationship between methamphetamine as a primary drug of choice, posttraumatic stress disorder (PTSD) symptoms, and adverse alcohol/drug use consequences.
  • To understand these relationships in a sample of American Indian (AI) individuals with self-identified substance use problems.

Main Methods:

  • Cross-sectional survey conducted with 198 AI tribal members experiencing addiction, utilizing a Community-Based Participatory Research framework.
  • Bayesian models were employed to analyze substance use-related adverse consequences as outcome variables, examining lifetime and past 30-day data.

Main Results:

  • Individuals reporting methamphetamine as their primary drug experienced greater adverse consequences compared to those reporting other primary drugs.
  • Posttraumatic stress disorder (PTSD) symptoms were consistently associated with increased substance use consequences across various domains, irrespective of the primary drug used.
  • Significant interaction effects were observed between methamphetamine use and PTSD symptoms for specific consequence domains, including interpersonal, intrapersonal, impulse control, social responsibility, and kinship loss.

Conclusions:

  • American Indian tribal members who primarily use methamphetamine and exhibit higher PTSD symptom scores experience substantial substance use-related consequences.
  • There is a critical need for interventions that simultaneously address stimulant use and traumatic stress to enhance health outcomes in this population.