Use Patterns, Flavors, Brands, and Ingredients of Nonnicotine e-Cigarettes among adolescents, Young adults, and adults in the United States.

Introduction:
This text discusses the results of a cross-sectional study examining nonnicotine e-cigarette use among a national online sample of adolescents, young adults, and adults. The study aimed to identify the specific brands, flavors, and ingredients being used, as well as the extent to which people are co-using nonnicotine and nicotine e-cigarettes.

Key Points:

* The study had a sample size of 6131 participants, with a response rate of 55.1%.
* Participants were recruited from qualtrics' online research panels and were required to provide online consent or assent before beginning the self-administered survey.
* The survey included questions about sociodemographic information, use of nicotine and nonnicotine e-cigarettes, and co-use of nicotine and nonnicotine e-cigarettes.
* Participants were asked to identify specific brands, flavors, and ingredients used in nonnicotine e-cigarettes.
* The study found that 25.9% of participants had ever used a nonnicotine e-cigarette, and 16.7% had used one in the past 30 days.
* Co-use of nonnicotine and nicotine e-cigarettes was reported by 18.8% of participants.
* The most common flavors used in nonnicotine e-cigarettes were sweet, dessert, or candy (36.3%), fruit (33.4%), and mint or menthol (20.2%).
* Participants most commonly reported using tetrahydrocannabinol (36.9%), cannabidiol (33.7%), melatonin (27.5%), caffeine (26.9%), and essential oils (22.9%) in their nonnicotine e-cigarettes.

Main Message:
The study highlights the widespread use of nonnicotine e-cigarettes, particularly among adolescents and young adults. The study also reveals that many users are co-using nonnicotine and nicotine e-cigarettes, which could have additive health risks. The findings suggest a need for further surveillance of nonnicotine e-cigarette use and co-use, as well as targeted prevention messages and regulation of nonnicotine e-cigarettes that make unsubstantiated health claims or market to youth.

Gaiha SM, Lin C, Lempert LK, halpern-Felsher B. Use Patterns, Flavors, Brands, and Ingredients of Nonnicotine e-Cigarettes among adolescents, Young adults, and adults in the United States. JaMa network open. 2022;5(5):1. doi:10.1001/jamanetworkopen.2022.16194