Patterns of simultaneous and concurrent alcohol and marijuana use among adolescents.
Megan E PatrickDeborah D KloskaYvonne M Terry-McElrathChristine M LeePatrick M O'MalleyLloyd D JohnstonPublished in: The American journal of drug and alcohol abuse (2017)
Among 12th graders who use both alcohol and marijuana, the majority use simultaneously, although not all use heavily. Given the recognized increased public health risks associated with simultaneous use, adolescent prevention programming should include focus on particular risks of simultaneous use.