title: E-cigarette use among Texas youth: Results from the 2014 Texas Youth Tobacco Survey.
abstract: BACKGROUND
  Several characteristics of electronic cigarettes (e-cigarettes), such as candy flavorings, are worrisome for attracting youth. The current cross-sectional study uses data on e-cigarette use from the 2014 Texas Youth Tobacco Survey (TYTS), a representative statewide sample of Texas middle school and high school students. This study's aims are to determine the prevalence of e-cigarette use, including rates of concurrent use with other tobacco products among Texas youth and to describe the demographic and tobacco use differences between e-cigarette users and non-users.
  
  
  METHODS
  Participants were 13,602 6th through 12th grade students in Texas. Descriptive statistics were generated to determine the prevalence of current and lifetime e-cigarette use and to determine the prevalence of demographic characteristics across e-cigarette usage groups. Logistic regression analyses were conducted to examine differences in demographic characteristics, cigarette use in the home, and tobacco use behaviors for e-cigarette users versus non-users.
  
  
  RESULTS
  Almost one quarter of all middle and high school students reported lifetime e-cigarette use and 14.0% were past 30-day users of these products. Current e-cigarette users were more likely to be high school students, white and male than non-current users. Both current and lifetime e-cigarette users were also more likely than their peers to use other tobacco products, although 24.2% of current e-cigarette users had never smoked conventional cigarettes, and 7.3% had never used any other type of tobacco product besides an e-cigarette.
  
  
  CONCLUSIONS
  Findings highlight the urgency to regulate e-cigarettes as well as to include these products in tobacco prevention programs.
authors.affiliation: University of Texas, School of Public Health, Austin Regional Campus, 1616 Guadalupe, Suite 6.300, Austin, TX 78701, USA. Electronic address: Maria.R.Cooper@uth.tmc.edu.
authors.forename: Maria
authors.initials: M
authors.lastname: Cooper
authors.affiliation: University of Texas, School of Public Health, Austin Regional Campus, 1616 Guadalupe, Suite 6.300, Austin, TX 78701, USA. Electronic address: Kathleen.R.Case@uth.tmc.edu.
authors.forename: Kathleen R
authors.initials: KR
authors.lastname: Case
authors.affiliation: University of Texas at Austin, Department of Kinesiology and Health Education, 2109 San Jacinto Blvd., Austin, TX 78712-1415, USA. Electronic address: alexandra.loukas@austin.utexas.edu.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Loukas
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D002648:Child; D003430:Cross-Sectional Studies; D066300:Electronic Nicotine Delivery Systems / Q000706:statistics & numerical data*; D005260:Female; D006306:Health Surveys / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D013334:Students / Q000523:psychology / Q000706:statistics & numerical data; D013781:Texas
keywords: Adolescents; Alternative tobacco products; Electronic cigarettes; Tobacco use