E-cigarette Product Characteristics and Subsequent Frequency of Cigarette Smoking.

Autor:	Barrington-Trimis JL; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and jtrimis@usc.edu., Yang Z; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., Schiff S; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., Unger J; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., Cruz TB; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., Urman R; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., Cho J; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and jtrimis@usc.edu., Samet JM; Colorado School of Public Health, University of Colorado, Aurora, Colorado., Leventhal AM; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., Berhane K; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and., McConnell R; Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California; and.
Jazyk:	angličtina
Zdroj:	Pediatrics [Pediatrics] 2020 May; Vol. 145 (5). Date of Electronic Publication: 2020 Apr 06.
DOI:	10.1542/peds.2019-1652
Abstrakt:	Background: There is a dearth of evidence regarding the association of use of electronic cigarettes (e-cigarettes) with certain product characteristics and adolescent and young adult risk of unhealthy tobacco use patterns (eg, frequency of combustible cigarette smoking), which is needed to inform the regulation of e-cigarettes. Methods: Data were collected via an online survey of participants in the Southern California Children's Health Study from 2015 to 2016 (baseline) and 2016 to 2017 (follow-up) ( N = 1312). We evaluated the association of binary categories of 3 nonmutually exclusive characteristics of the e-cigarette used most frequently with the number of cigarettes smoked in the past 30 days at 1-year follow-up. Product characteristics included device (vape pen and/or modifiable electronic cigarette [mod]), use of nicotine in electronic liquid (e-liquid; yes or no), and use for dripping (directly dripping e-liquid onto the device; yes or no). Results: Relative to never e-cigarette users, past-30-day e-cigarette use was associated with greater frequency of past-30-day cigarette smoking at follow-up. Among baseline past-30-day e-cigarette users, participants who used mods (versus vape pens) smoked >6 times as many cigarettes at follow-up (mean: 20.8 vs 1.3 cigarettes; rate ratio = 6.33; 95% confidence interval: 1.64-24.5) after adjustment for sociodemographic characteristics, baseline frequency of cigarette smoking, and number of days of e-cigarette use. After adjustment for device, neither nicotine e-liquid nor dripping were associated with frequency of cigarette smoking. Conclusions: Baseline mod users (versus vape pen users) smoked more cigarettes in the past 30 days at follow-up. Regulation of e-cigarette device type warrants consideration as a strategy to reduce cigarette smoking among adolescents and young adults who vape. Competing Interests: POTENTIAL CONFLICT OF INTEREST: Mr Urman began a position at Amgen on April 15, 2019, and did not contribute to the article after that date; the other authors have indicated they have no potential conflicts of interest to disclose. (Copyright © 2020 by the American Academy of Pediatrics.)
Databáze:	MEDLINE
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