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Nicotine Tob Res. 2016 Dec 24. pii: ntw388. doi: 10.1093/ntr/ntw388. [Epub ahead of print]

Frequency of youth e-cigarette and tobacco use patterns in the U.S.: Measurement precision is critical to inform public health.

Author information

  • 1The Schroeder Institute for Tobacco Research and Policy Studies at Truth Initiative, Washington, DC avillanti@truthinitiative.org.
  • 2Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD.
  • 3The Schroeder Institute for Tobacco Research and Policy Studies at Truth Initiative, Washington, DC.
  • 4Department of Oncology, Georgetown University Medical Center, Lombardi Comprehensive Cancer Center, Washington, DC.

Abstract

INTRODUCTION:

E-cigarette use occurs with tobacco product use in youth.

METHODS:

Using the 2014 National Youth Tobacco Survey (NYTS), we examined past 30-day frequency of cigarette, cigar, smokeless, and e-cigarette use in the context of past 30-day and ever tobacco product use in U.S. middle and high school students (N=22,007). Frequency of product-specific use was examined by exclusive versus concurrent use with another product in the past 30 days (poly-use).

RESULTS:

In 2014, the majority (83%) of U.S. middle and high school students had not used tobacco or e-cigarettes in the past 30 days. In the 9.3% of youth reporting any past 30-day e-cigarette use, 63% also reported using a tobacco product; among the 3.3% past 30-day exclusive e-cigarette users, about two thirds (2.1%) had ever used combustible or non-combustible tobacco products and one third (1.2%) had not. Few never tobacco users had used e-cigarettes on 10 or more days in the past month (absolute percent < 0.1%). Among past 30-day cigarette and smokeless users, the two highest frequency categories were 1-2 days and daily use; among past 30-day e-cigarette and cigar users, prevalence decreased with increasing frequency of use. The majority of past 30-day cigarette, cigar, smokeless, and e-cigarette users reported poly-use.

CONCLUSIONS:

Prevalence estimates for a single product mask the complex patterns of frequency, temporality, and poly-use in youth. Two-thirds of past 30-day exclusive e-cigarette users have ever used tobacco. Poly-use is the dominant pattern of tobacco and e-cigarette use among U.S. middle and high school students.

PMID:
28013271
DOI:
10.1093/ntr/ntw388
[PubMed - as supplied by publisher]
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