Frequency of Youth E-cigarette and Tobacco Use Patterns in the U.S.: Measurement Precision is Critic
Tuesday, January 17, 2017
Posted by: Natalia Gromov
Andrea C. Villanti, Jennifer L. Pearson, Allison M. Glasser, Amanda L. Johnson, Lauren K Collins, Raymond S. Niaura, and David B. Abrams
Frequency of Youth E-cigarette and Tobacco Use Patterns in the U.S.: Measurement Precision is Critical to Inform Public Health.
Nicotine Tob Res first published online December 24, 2016
E-cigarette use occurs with tobacco product use in youth. 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). 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. 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.
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