PMID- 38536225 OWN - NLM STAT- MEDLINE DCOM- 20240328 LR - 20240425 IS - 1438-8871 (Electronic) IS - 1439-4456 (Print) IS - 1438-8871 (Linking) VI - 26 DP - 2024 Mar 27 TI - Effectiveness of the Minder Mobile Mental Health and Substance Use Intervention for University Students: Randomized Controlled Trial. PG - e54287 LID - 10.2196/54287 [doi] LID - e54287 AB - BACKGROUND: University attendance represents a transition period for students that often coincides with the emergence of mental health and substance use challenges. Digital interventions have been identified as a promising means of supporting students due to their scalability, adaptability, and acceptability. Minder is a mental health and substance use mobile app that was codeveloped with university students. OBJECTIVE: This study aims to examine the effectiveness of the Minder mobile app in improving mental health and substance use outcomes in a general population of university students. METHODS: A 2-arm, parallel-assignment, single-blinded, 30-day randomized controlled trial was used to evaluate Minder using intention-to-treat analysis. In total, 1489 participants were recruited and randomly assigned to the intervention (n=743, 49.9%) or waitlist control (n=746, 50.1%) condition. The Minder app delivers evidence-based content through an automated chatbot and connects participants with services and university social groups. Participants are also assigned a trained peer coach to support them. The primary outcomes were measured through in-app self-assessments and included changes in general anxiety symptomology, depressive symptomology, and alcohol consumption risk measured using the 7-item General Anxiety Disorder scale, 9-item Patient Health Questionnaire, and US Alcohol Use Disorders Identification Test-Consumption Scale, respectively, from baseline to 30-day follow-up. Secondary outcomes included measures related to changes in the frequency of substance use (cannabis, alcohol, opioids, and nonmedical stimulants) and mental well-being. Generalized linear mixed-effects models were used to examine each outcome. RESULTS: In total, 79.3% (589/743) of participants in the intervention group and 83% (619/746) of participants in the control group completed the follow-up survey. The intervention group had significantly greater average reductions in anxiety symptoms measured using the 7-item General Anxiety Disorder scale (adjusted group mean difference=-0.85, 95% CI -1.27 to -0.42; P<.001; Cohen d=-0.17) and depressive symptoms measured using the 9-item Patient Health Questionnaire (adjusted group mean difference=-0.63, 95% CI -1.08 to -0.17; P=.007; Cohen d=-0.11). A reduction in the US Alcohol Use Disorders Identification Test-Consumption Scale score among intervention participants was also observed, but it was not significant (P=.23). Statistically significant differences in favor of the intervention group were found for mental well-being and reductions in the frequency of cannabis use and typical number of drinks consumed. A total of 77.1% (573/743) of participants in the intervention group accessed at least 1 app component during the study period. CONCLUSIONS: In a general population sample of university students, the Minder app was effective in reducing symptoms of anxiety and depression, with provisional support for increasing mental well-being and reducing the frequency of cannabis and alcohol use. These findings highlight the potential ability of e-tools focused on prevention and early intervention to be integrated into existing university systems to support students' needs. TRIAL REGISTRATION: ClinicalTrials.gov NCT05606601; https://clinicaltrials.gov/ct2/show/NCT05606601. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.2196/49364. CI - (c)Melissa Vereschagin, Angel Y Wang, Chris G Richardson, Hui Xie, Richard J Munthali, Kristen L Hudec, Calista Leung, Katharine D Wojcik, Lonna Munro, Priyanka Halli, Ronald C Kessler, Daniel V Vigo. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 27.03.2024. FAU - Vereschagin, Melissa AU - Vereschagin M AUID- ORCID: 0000-0002-0378-3296 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Wang, Angel Y AU - Wang AY AUID- ORCID: 0000-0003-2001-2220 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Richardson, Chris G AU - Richardson CG AUID- ORCID: 0000-0002-7641-7027 AD - School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Xie, Hui AU - Xie H AUID- ORCID: 0000-0003-3328-7135 AD - Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada. FAU - Munthali, Richard J AU - Munthali RJ AUID- ORCID: 0000-0001-8492-7409 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Hudec, Kristen L AU - Hudec KL AUID- ORCID: 0000-0001-8573-1491 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Leung, Calista AU - Leung C AUID- ORCID: 0000-0003-0016-3961 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Wojcik, Katharine D AU - Wojcik KD AUID- ORCID: 0000-0003-4964-4248 AD - Menninger Department of Psychiatry & Behavioural Sciences, Baylor College of Medicine, Houston, TX, United States. FAU - Munro, Lonna AU - Munro L AUID- ORCID: 0000-0002-8002-8008 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Halli, Priyanka AU - Halli P AUID- ORCID: 0000-0002-5806-6024 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. FAU - Kessler, Ronald C AU - Kessler RC AUID- ORCID: 0000-0003-4831-2305 AD - Department of Health Care Policy, Harvard Medical School, Boston, MA, United States. FAU - Vigo, Daniel V AU - Vigo DV AUID- ORCID: 0000-0002-4445-4122 AD - Department of Psychiatry, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. AD - School of Population and Public Health, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. LA - eng SI - ClinicalTrials.gov/NCT05606601 PT - Journal Article PT - Randomized Controlled Trial DEP - 20240327 PL - Canada TA - J Med Internet Res JT - Journal of medical Internet research JID - 100959882 RN - general anxiety disorder SB - IM MH - Humans MH - Mental Health MH - *Alcoholism MH - Universities MH - Anxiety Disorders MH - *Cannabis PMC - PMC11007604 OTO - NOTNLM OT - college students OT - digital interventions OT - mental health OT - mobile interventions OT - mobile phone OT - randomized controlled trial OT - substance use COIS- Conflicts of Interest: For the past 3 years, RCK has been a consultant for the Cambridge Health Alliance; Canandaigua Veterans Affairs Medical Center; Holmusk; Partners Healthcare, Inc; RallyPoint Networks, Inc; and Sage Therapeutics. He has stock options in Cerebral Inc, Mirah, PYM, Roga Sciences, and Verisense Health. EDAT- 2024/03/27 12:46 MHDA- 2024/03/28 06:45 PMCR- 2024/03/27 CRDT- 2024/03/27 11:54 PHST- 2023/11/05 00:00 [received] PHST- 2024/02/17 00:00 [accepted] PHST- 2023/12/05 00:00 [revised] PHST- 2024/03/28 06:45 [medline] PHST- 2024/03/27 12:46 [pubmed] PHST- 2024/03/27 11:54 [entrez] PHST- 2024/03/27 00:00 [pmc-release] AID - v26i1e54287 [pii] AID - 10.2196/54287 [doi] PST - epublish SO - J Med Internet Res. 2024 Mar 27;26:e54287. doi: 10.2196/54287.