Motives for Alcohol and Marijuana Use as Predictors of Use and Problem Use Among Young Adult College Students

• Authors: Regine Haardoerfer, Emory University; Akilah Patterson, Emory University; Milkie Vu, Emory University; Regine Haardörfer, Emory University; Michael Windle, Emory University; Carla Berg, Emory University
• Journal Title: JOURNAL OF DRUG ISSUES
• Volume: Volume 50, Number 4
• Publisher: SAGE PUBLICATIONS INC | 2020-05-14, Pages 359-377
• Type of Work: Article | Post-print: After Peer Review
• Publisher DOI: http://doi.org/10.1177/0022042620917101
• Subjects: Health Sciences, Public Health
• Keywords: Science & Technology; Life Sciences & Biomedicine; Substance Abuse; alcohol use; marijuana use; problem use; college students; young adults; ADVERSE CHILDHOOD EXPERIENCES; DISORDERS IDENTIFICATION TEST; MENTAL-HEALTH PROBLEMS; REPORT SCALE ASRS; CANNABIS USE; SUBSTANCE USE; SCREENING INSTRUMENT; DRINKING; RISK; INITIATION

Abstract

This study examined (a) differences between alcohol-only users and alcohol–marijuana co-users and (b) motives for use in relation to alcohol and marijuana use and problem use. Spring 2016 data among 1,870 past 4-month alcohol users (63.6% female, 69.1% White) from seven Georgia colleges/universities were analyzed cross-sectionally and with regard to problem use measured 4 months later. Correlates of co-use (n = 345; vs. alcohol-only use, n = 1,525) included greater alcohol and marijuana use frequency, problem drinking and marijuana use, and alcohol use motives (p’s <.05). Controlling for covariates, alcohol use frequency correlated with greater marijuana use frequency and Coping and Self-enhancement alcohol use motives, but lower Conformity alcohol use motives (p’s <.001); greater Coping and Self-enhancement alcohol use motives (p’s <.01) predicted problem alcohol use. Marijuana use frequency correlated with greater Coping and Expansion marijuana use motives (p’s <.05); greater Expansion marijuana use motives (p =.005) predicted problem marijuana use. College-based substance use interventions should target Coping and Self-enhancement alcohol use motives and Expansion marijuana use motives.