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Individual Differences in Substance Use Motives, Trauma, and Stress Among College-Based Polysubstance Users.

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College students often use multiple substances like alcohol and cannabis for social, enhancement, and coping reasons. Understanding these motives is key for addressing polysubstance use and its health consequences.

Keywords:
Polysubstance usestresssubstance co-usesubstance use motivestrauma

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Area of Science:

  • Psychology
  • Public Health
  • Neuroscience

Background:

  • Polysubstance use, especially among college students, is a growing concern linked to adverse health outcomes.
  • Motivations driving polysubstance use remain underexplored, hindering effective intervention strategies.

Purpose of the Study:

  • To investigate motivations for alcohol, tobacco, and cannabis use in college students with varying substance use patterns.
  • To examine the influence of trauma and daily stress on polysubstance use behaviors.

Main Methods:

  • Analysis of self-report data from 134 participants in the MAPme Study.
  • Comparison of motivations between polysubstance users and single/non-substance users.

Main Results:

  • Polysubstance use, particularly alcohol and cannabis co-use, was more prevalent than expected.
  • Polysubstance users reported stronger social, enhancement, and coping motivations for alcohol use compared to single-use alcohol consumers.
  • Motivations were linked to alcohol use frequency and problem severity, but not trauma history or stress levels.

Conclusions:

  • Shared motivations may underlie polysubstance co-use patterns in college students.
  • Findings can inform targeted interventions and treatment approaches for polysubstance use in this demographic.