Type of e-liquid vaped, poly-nicotine use and nicotine dependence symptoms in young adult e-cigarette users: a descriptive study.

Introduction:
This text is a summary of a research article that examines e-cigarette use among young adults in Canada. The article looks at the types of e-liquid used, poly-nicotine use, nicotine dependence symptoms, and attempts to quit conventional cigarettes. The study aims to provide a better understanding of e-cigarette users and the products they consume.

Key Points:

* The study used data from the Nicotine Dependence in Teens (NDIT) study, a longitudinal investigation on the natural course of nicotine dependence in 1294 students.
* Participants were asked about their e-cigarette liquid use, past-year cigarette smoking, other tobacco product use, cannabis mixed with tobacco use, number of other nicotine-containing substances used in the past year, perceived nicotine dependence, cravings, withdrawal symptoms, and use of e-cigarettes as a cessation aid.
* Of the 775 participants, 19.2% reported past-year e-cigarette use. Most users (82.6%) had used at least one other nicotine-containing substance in the past year.
* Two-thirds of e-cigarette users reported nicotine dependence symptoms, with higher proportions among those who vaped e-liquid with nicotine.
* Less than half of e-cigarette users had tried to quit conventional cigarettes using e-cigarettes, and of those who had, 80.3% were current smokers.
* The study found that most e-cigarette users smoked conventional cigarettes and two-thirds reported nicotine dependence symptoms.
* The study suggests that e-cigarette use may not be an effective cessation aid and that poly-nicotine use is common in young adults.

Main Message:
The study highlights the importance of understanding e-cigarette use among young adults, particularly in regards to the types of e-liquid used and nicotine dependence symptoms. The study found that most e-cigarette users smoked conventional cigarettes and two-thirds reported nicotine dependence symptoms, suggesting that e-cigarette use may not be an effective cessation aid. Additionally, the study found that poly-nicotine use is common in young adults, which could have implications for nicotine dependence and cessation efforts. Overall, the study highlights the need for further research on e-cigarette use and nicotine dependence in young adults.

Dugas EN, Sylvestre MP, O’Loughlin J. Type of e-liquid vaped, poly-nicotine use and nicotine dependence symptoms in young adult e-cigarette users: a descriptive study. BMC public health. 2020;20(1):922. doi:10.1186/s12889-020-09056-y