biostudies-literaturePatrick MENational Institute on Alcohol Abuse and AlcoholismNIAAA NIH HHS410-418https://www.ebi.ac.uk/biostudies/studies/S-EPMC9065172biostudies-literatureUnknown36(4)<h4>Objective</h4>The present study examined daily associations between mental health symptoms (i.e., depression and anxiety symptoms) and simultaneous alcohol and marijuana (SAM) use and use-related negative consequences among young adults.<h4>Method</h4>Participants were a community sample of 409 young adults between the ages of 18-25 who drank alcohol at least three times in the past month and reported SAM use in the past month (<i>M</i>_age = 21.6, 50.9% female). A baseline assessment included a measure of SAM use motives, after which participants completed five 14-day bursts reporting daily mental health symptoms and alcohol/marijuana use.<h4>Results</h4>Daily mental health symptoms were not associated with SAM use likelihood. However, baseline SAM coping motives moderated tPsychology of addictive behaviors : journal of the Society of Psychologists in Addictive BehaviorsExamining daily associations between mental health symptoms and simultaneous alcohol and marijuana use and consequences among young adults.PMC9065172T32 AA007455R01 AA025037R01AA025037Graupensperger SLee CMCadigan JMRamirez JJWalukevich-Dienst KPatrick MERinehart LRhew ICfalseExamining daily associations between mental health symptoms and simultaneous alcohol and marijuana use and consequences among young adults.<h4>Objective</h4>The present study examined daily associations between mental health symptoms (i.e., depression and anxiety symptoms) and simultaneous alcohol and marijuana (SAM) use and use-related negative consequences among young adults.<h4>Method</h4>Participants were a community sample of 409 young adults between the ages of 18-25 who drank alcohol at least three times in the past month and reported SAM use in the past month (<i>M</i>_age = 21.6, 50.9% female). A baseline assessment included a measure of SAM use motives, after which participants completed five 14-day bursts reporting daily mental health symptoms and alcohol/marijuana use.<h4>Results</h4>Daily mental health symptoms were not associated with SAM use likelihood. However, baseline SAM coping motives moderated t2022-01-01T00:00:00Z2022 Jun2025-04-26T23:00:40.367Z2025-04-06T17:24:43.588ZS-EPMC90651723473517110.1037/adb0000791