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Tob Control. 2017 Dec;26(e2):e117-e126. doi: 10.1136/tobaccocontrol-2016-053462. Epub 2017 Jun 17.

Electronic cigarette use among US adults in the Population Assessment of Tobacco and Health (PATH) Study, 2013-2014.

Author information

1
Center for Tobacco Products, US Food and Drug Administration, Silver Spring, Maryland, USA.
2
Schroeder Institute for Tobacco Research and Policy Studies, Truth Initiative, Washington, District of Columbia, USA.
3
Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
4
Westat Inc, Rockville, Maryland, USA.
5
Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, USA.
6
Center for Tobacco Studies, School of Public Health, Rutgers University, New Brunswick, New Jersey, USA.
7
Roswell Park Cancer Institute, Buffalo, New York, USA.
8
National Institute on Drug Abuse, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, Maryland, USA.

Abstract

BACKGROUND:

Electronic cigarette (e-cigarette) use in the USA is increasing. As such, it is critical to understand who uses e-cigarettes, how e-cigarettes are used and what types of products are prevalent. This study assesses patterns of current e-cigarette use among daily and non-daily adult users in the 2013-2014 Population Assessment of Tobacco and Health (PATH) Study.

METHODS:

We examined the proportion of current adult e-cigarette users (n=3642) reporting infrequent use (use on 'some days' and use on 0-2 of the past 30 days), moderate use (use on 'some days' and use on >2 of the past 30 days) and daily use. We examined demographic characteristics, use of other tobacco products and e-cigarette product characteristics overall and by use category. Adjusted prevalence ratios (aPRs) were calculated using Poisson regression to assess correlates of daily e-cigarette use.

RESULTS:

Among the 5.5% of adult current e-cigarette users in the PATH Study, 42.2% reported infrequent use, 36.5% reported moderate use and 21.3% reported daily use. Cigarette smokers who quit in the past year were more likely to report daily e-cigarette use, compared with current smokers (aPR=3.21, 95% CI=2.75 to 3.76). Those who reported using rechargeable or refillable devices were more likely to report daily use compared with those who did not use these devices (aPR=1.95, 95% CI=1.44 to 2.65 and aPR=2.10, 95% CI=1.75 to 2.52, respectively).

CONCLUSIONS:

The majority of e-cigarette users in this study reported less than daily use. Compared with non-daily use, daily use was associated with being a former smoker; however, cross-sectional data limits our ability to establish the temporality or directionality of such associations.

KEYWORDS:

Electronic nicotine delivery devices; Non-cigarette tobacco products; Surveillance and monitoring

[Indexed for MEDLINE]

Conflict of interest statement

Competing interests: MLG received research grant from Pfizer and served as a member of advisory board to J&J, manufacturers of smoking cessation medications. RN served as an expert witness for plaintiff versus tobacco companies. WMC reports long-term stock ownership in General Electric, 3M Companies, and Pfizer unrelated to the content of this paper. No additional financial disclosures were reported by the authors of this paper.

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