title: College Students' Polytobacco Use, Cigarette Cessation, and Dependence.
abstract: We examined patterns of tobacco and electronic cigarette (e-cigarette) use among college students. Differences in sociodemographic characteristics between non-users of these products and 4 mutually exclusive groups of tobacco/e-cigarette users were assessed. Differences in cigarette cessation attempts and dependence between exclusive cigarette smokers and users of cigarettes and at least one alternative tobacco product also were examined.
  
  
  
  Participants were 5468 18-29 year-old students from 24 colleges in Texas who completed an online survey.
  
  
  
  Multiple-product use was more prevalent than single-product use. All 4 current tobacco/e-cigarette-user groups were more likely than non-users to be men and older. College students who were younger when they smoked their first cigarette, and those reporting ever needing a cigarette, were more likely to be multiple-product users than cigarette-only users. There were no group differences in cigarette cessation attempts or any other variables.
  
  
  
  Using multiple products is associated with some indicators of dependence, but does not seem to aid or deter college students' smoking cessation attempts. Longitudinal research is needed given that transitions in tobacco/e-cigarette use continue throughout young adulthood.
authors.affiliation: Department of Kinesiology & Health Education, The University of Texas at Austin, Austin, TX, USA. alexandra.loukas@austin.utexas.edu.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Loukas
authors.affiliation: Department of Kinesiology & Health Education, The University of Texas at Austin, Austin, TX, USA.
authors.forename: Sherman
authors.initials: S
authors.lastname: Chow
authors.affiliation: Department of Kinesiology & Health Education, The University of Texas at Austin, Austin, TX, USA.
authors.forename: Keryn E
authors.initials: KE
authors.lastname: Pasch
authors.affiliation: Department of Kinesiology & Health Education, The University of Texas at Austin, Austin, TX, USA.
authors.forename: Xiaoyin
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Kinesiology & Health Education, The University of Texas at Austin, Austin, TX, USA.
authors.forename: Josephine T
authors.initials: JT
authors.lastname: Hinds Iii
authors.affiliation: Department of Kinesiology & Health Education, The University of Texas at Austin, Austin, TX, USA.
authors.forename: C Nathan
authors.initials: CN
authors.lastname: Marti
authors.affiliation: Department of Epidemiology, Human Genetics, and Environmental Sciences, UT Health, University of Texas Health Science Center at Houston, School of Public Health, Austin Regional Campus, Austin, TX, USA.
authors.forename: Melissa B
authors.initials: MB
authors.lastname: Harrell
authors.affiliation: Department of Health Promotion and Behavioral Sciences, UT Health, University of Texas Health Science Center at Houston, School of Public Health, Austin Regional Campus, Austin, TX, USA.
authors.forename: MeLisa R
authors.initials: MR
authors.lastname: Creamer
authors.affiliation: Department of Health Promotion and Behavioral Sciences, UT Health, University of Texas Health Science Center at Houston, School of Public Health, Austin Regional Campus, Austin, TX, USA.
authors.forename: Cheryl L
authors.initials: CL
authors.lastname: Perry
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D066300:Electronic Nicotine Delivery Systems / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D012907:Smoking / Q000453:epidemiology / Q000523:psychology; D016540:Smoking Cessation / Q000523:psychology / Q000706:statistics & numerical data*; D013334:Students / Q000523:psychology* / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D014029:Tobacco Use Disorder / Q000453:epidemiology* / Q000523:psychology; D014495:Universities; D055815:Young Adult