About The Study: In this survey study of California adolescents, exposure to e-cigarette or cannabis posts was associated with adolescent e-cigarette, cannabis, or dual use. Improvement of social media community guidelines and greater policy attention to co-use and marketing of e-cigarettes and cannabis may help prevent youth substance use.
Corresponding Author: To contact the corresponding author, Julia Vassey, PhD, email vassey@usc.edu .
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(doi:10.1001/jamanetworkopen.2025.17611)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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JAMA Network Open