Incremental Predictive Validity of the Dualistic Model of Passion for Cannabis Use Among College Undergraduate Students With and Without a Cannabis Use Disorder

Introduction

We examined whether the Dualistic Model of Passion (DMP; i.e., obsessive passion [OP] and harmonious passion [HP]) for cannabis use was prospectively associated with cannabis use and use-related outcomes, and with academic performance, relationship attachment style, and social connectedness among college students. We also explored whether the DMP was associated with outcomes when included in a model using established constructs (e.g., coping motives, refusal self-efficacy, cannabis use disorder [CUD] symptoms) as predictors of cannabis use and outcomes.

Methods

Using a longitudinal cohort design (baseline, 5-month, 10-month [timepoints chosen to better correspond to 9-month academic year]), 513 undergraduate students from two universities who reported using cannabis at least four times in the past month completed a baseline survey (308 meeting criteria for CUD). We used Generalized Estimating Equations to assess longitudinal associations between OP/HP and cannabis use and academic/social outcomes at 5-month and 10-month.

Results

At baseline, participants were young adults (Mean age = 20.57, SD = 2.51), 78.8% non-Hispanic, 83.8% White, 55.0% female, and 72.3% heterosexual. Greater HP was not associated with greater past month cannabis use or cannabis-related problems. Greater OP was associated with greater past month cannabis use and more cannabis-related problems. There were no significant passion by time interactions. Greater HP was associated with more anxious attachment. OP was associated with less social connection.

Conclusion

This research suggests that the DMP provides novel information about factors associated with cannabis use and use-related consequences, which can aid in our understanding of cannabis use, misuse, and CUD among college students.

Exploring the intersectionality of stigma and substance use help-seeking behaviours among lesbian, gay, bisexual, transgender, queer, questioning or otherwise gender or sexuality minority (LGBTQ+) individuals in the United States: A scoping review

Problematic substance use (SU) is a significant issue among LGBTQ+ individuals, but rates of treatment/help-seeking in this population remain low. This review aimed to investigate literature about intersectional stigma of SU and LGBTQ+ identity and its impact on SU help-seeking behaviours in the U.S. Eligible studies from eight-database were included if peer-reviewed, in English, from the U.S., published between 2000 and 2022, focused on SU, stigma, SU help-seeking behaviours, among LGBTQ+ adults. Of 458 search results, 50 underwent full-text review, 12 were included in the final sample. Minority Stress Theory emerged as a relevant theoretical framework. Findings revealed that increased SU as a coping strategy was associated with minority stress. Intersectional stigma negatively impacted SU treatment experience among LGBTQ+ individuals, leading to avoidance of help-seeking or poor treatment outcomes. Patterns of SU and impact of stigma among LGBTQ+ individuals differ, wherein bisexual and transgender individuals reported significantly more treatment barriers and unique stressors. LGBTQ+ individuals reported earlier age of SU onset and were more likely to encounter opportunities for SU. This review highlights the impact of intersectional stigma on SU help-seeking behaviour among LGBTQ+ individuals in the U.S. Recommendations are provided for future clinical practice, research, and policy to better support LGBTQ+ individuals.