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Ann Thorac Med. 2019 Apr-Jun;14(2):127-133. doi: 10.4103/atm.ATM_217_18.

Prospective study of dual use of e-cigarettes and other tobacco products among school-going youth in rural Appalachian Tennessee.

Author information

1
Department of Health Services Management and Policy, College of Public Health, East Tennessee State University, Johnson City, TN, USA.
2
Department of Biostatistics and Epidemiology, College of Public Health, East Tennessee State University, Johnson City, TN, USA.
3
Georgia State University Tobacco Center of Regulatory Science, Atlanta, GA, USA.
4
Louisiana State University AgCenter, LA, USA.
5
Department of Community and Behavioral Health, East Tennessee State University, Johnson City, TN, USA.

Abstract

INTRODUCTION:

E-cigarettes have emerged as the most commonly used tobacco or nicotine products among youth in the United States (US), and usage with other products (dual use) is not well understood. This study assessed dual use and identified associated factors of usage in school-going youth in the high tobacco burdened region of rural Appalachian Tennessee.

METHODS:

Two waves of data for the same cohort of students were collected in 2014 (Wave 1) and 2016 (Wave 2). Dual use of e-cigarettes with any other tobacco product was the dependent variable. The independent variables consisted of exposure to tobacco use at home, home smoking rules, smoking inside the vehicle, attitudes toward smoking, exposure to tobacco industry marketing/promotion, and peer/family pressure. Descriptive statistics and multivariate logistic regression analyses were conducted to determine the prevalence of dual use and delineate factors associated with usage.

RESULTS:

Dual use increased from 13.3% in Wave 1 to 18.6% in Wave 2. Results of logistic regression show that exposure to tobacco industry marketing/promotion was significantly associated with dual use in the two waves, odds ratio (OR) = 4.18 (confidence interval [CI] = 1.69-10.38) and OR = 4.43 (CI = 2.03-9.67), respectively. While allowing smoking inside the vehicles, sometimes, significantly increased dual use in Wave 1 (OR = 3.18 [CI = 1.19-8.48]), exposure to tobacco use at home (OR = 2.94 [1.24-6.97]), and peer/family pressure (OR = 2.92 [1.87-7.19]) increased usage in Wave 2.

CONCLUSION:

The increasing trend in dual use of e-cigarettes and other tobacco products among youth in Appalachia Tennessee suggests a critical need for comprehensive tobacco control programs to avert exacerbating disparities in tobacco use and tobacco-related diseases in the US.

KEYWORDS:

Central Appalachia; cohort; dual use; e-cigarettes; tobacco products; youth

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