E-Cigarette and Cannabis Social Media Posts and Adolescent Substance Use
In this survey study of 7612 adolescents, frequent exposure to cannabis posts on social media broadly was associated with solo e-cigarette use, solo cannabis use, and dual use initiation a year later, whereas platform-specific exposure to e-cigarette posts on TikTok was associated with solo cannabis and dual use initiation. Exposure to e-cigarette and cannabis posts from microinfluencers was associated with past-month cannabis use, whereas exposure to e-cigarette posts from friends was associated with past-month dual use; exposure to friends’ cannabis posts was also associated with past-month cannabis and dual use.
Since exposure to e-cigarette or cannabis posts may contribute to 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.
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