Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2019 Jun;64(6):770-775.
doi: 10.1016/j.jadohealth.2019.02.019.

Adolescents' E-Cigarette Use: Increases in Frequency, Dependence, and Nicotine Exposure Over 12 Months

Affiliations

Adolescents' E-Cigarette Use: Increases in Frequency, Dependence, and Nicotine Exposure Over 12 Months

Erin A Vogel et al. J Adolesc Health. 2019 Jun.

Abstract

Purpose: This study examined changes in e-cigarette and dual-use frequency, levels of nicotine exposure and e-cigarette dependence, and device and e-liquid preferences over 12 months.

Methods: Adolescents (N = 173, aged 13-18 years) who reported past-month e-cigarette use and at least 10 lifetime uses were recruited from the San Francisco Bay Area. The sample was 75.1% male, 54.9% non-Hispanic White, mean age 16.6 years (standard deviation = 1.2); 26.6% reported past-month cigarette smoking at baseline (i.e., dual use). At baseline, 6-month, and 12-month follow-up, participants provided saliva samples for cotinine testing and self-reported e-cigarette use frequency, dependence, past-month smoking, product preference, and flavor preference.

Results: Most (80.3%) were still using e-cigarettes at 12 months, and daily use increased from 14.5% to 29.8%. Model testing indicated an overall increase from baseline to 12 months in frequency of e-cigarette use (F(2, 166) = 5.69, p = .004), dependence (F(2, 164) = 5.49, p = .005), and cotinine levels (F(2, 103) = 4.40, p = .038). Among those reporting only e-cigarette use at baseline, 28.8% reported combustible cigarette use during follow-up. Among those reporting dual use at baseline, 57.1% were still dual using at 12 months, 31.4% reported e-cigarette use only, and none abstained from both products. Higher nicotine delivering e-cigarette devices (i.e., Juul, mods) became more popular over time, whereas flavor preferences (i.e., fruit, mint/menthol, and candy) remained stable.

Conclusions: Adolescents' e-cigarette use persisted over a 12-month period with significant increases in frequency of use, nicotine exposure, and e-cigarette dependence. Transitions from single to dual and dual to single nicotine product use were observed in approximately one in three users over the study period.

Keywords: Addiction; Adolescent; Cigarettes; Dependence; E-cigarette; ENDS; Nicotine.

PubMed Disclaimer

Figures

Figure 1.
Figure 1.
Use of e-cigarettes and cigarettes reported at each time point.
Figure 2.
Figure 2.
Preferred devices at each time point. Note: Includes data from all responding at each follow-up.

References

    1. National adolescent drug trends in 2018 [press release]. Ann Arbor, MI: Monitoring the Future; 2018.
    1. Cullen KA, Ambrose BK, Gentzke AS, Apelberg BJ, Jamal A, King BA. Use of electronic cigarettes and any tobacco product among middle and high school students — United States, 2011–2018. Atlanta, GA: 2018. - PMC - PubMed
    1. Department of Health & Human Services (US). Preventing tobacco use among youth and young adults: a report of the Surgeon General. Atlanta, GA: Centers for Disease Control and Prevention;2012. - PubMed
    1. Barrington-Trimis JL, Kong G, Leventhal AM, et al. E-cigarette use and subsequent smoking frequency among adolescents. Pediatrics. 2018:e20180486. - PMC - PubMed
    1. Lanza ST, Vasilenko SA. New methods shed light on age of onset as a risk factor for nicotine dependence. Addictive Behaviors. 2015;50:161–164. - PMC - PubMed

Publication types