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

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