title: The Impact of Trying Electronic Cigarettes on Cigarette Smoking by College Students: A Prospective Analysis.
abstract: OBJECTIVE
  We assessed the impact of trying electronic cigarettes (e-cigarettes) on future cigarette smoking in a sample of smokers enrolled in college.
  
  
  METHODS
  In this longitudinal study, first-semester college students at 7 colleges in North Carolina and 4 in Virginia completed a baseline survey and 5 follow-up surveys between fall 2010 and fall 2013. Current cigarette smoking at wave 6 was the primary outcome. Participants (n = 271) reported current cigarette smoking at baseline and no history of e-cigarette use. We measured trying e-cigarettes at each wave, defined as use in the past 6 months.
  
  
  RESULTS
  By wave 5, 43.5% had tried e-cigarettes. Even after controlling for other variables associated with cigarette smoking, trying e-cigarettes was a significant predictor of cigarette smoking at wave 6 (adjusted odds ratio [AOR] = 2.48; 95% confidence interval [CI] = 1.32, 4.66), as were friends' cigarette smoking (AOR = 4.20; 95% CI = 2.22, 7.96) and lifetime use of other tobacco products (AOR = 1.63; 95% CI = 1.22, 2.17).
  
  
  CONCLUSIONS
  Trying e-cigarettes during college did not deter cigarette smoking and may have contributed to continued smoking.
authors.affiliation: Erin L. Sutfin, Beata Debinski, Kimberly G. Wagoner, and Mark Wolfson are with the Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC. Beth A. Reboussin is with the Department of Biostatistical Sciences, Wake Forest School of Medicine. John Spangler is with the Department of Family and Community Medicine, Wake Forest School of Medicine.
authors.forename: Erin L
authors.initials: EL
authors.lastname: Sutfin
authors.affiliation: Erin L. Sutfin, Beata Debinski, Kimberly G. Wagoner, and Mark Wolfson are with the Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC. Beth A. Reboussin is with the Department of Biostatistical Sciences, Wake Forest School of Medicine. John Spangler is with the Department of Family and Community Medicine, Wake Forest School of Medicine.
authors.forename: Beth A
authors.initials: BA
authors.lastname: Reboussin
authors.affiliation: Erin L. Sutfin, Beata Debinski, Kimberly G. Wagoner, and Mark Wolfson are with the Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC. Beth A. Reboussin is with the Department of Biostatistical Sciences, Wake Forest School of Medicine. John Spangler is with the Department of Family and Community Medicine, Wake Forest School of Medicine.
authors.forename: Beata
authors.initials: B
authors.lastname: Debinski
authors.affiliation: Erin L. Sutfin, Beata Debinski, Kimberly G. Wagoner, and Mark Wolfson are with the Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC. Beth A. Reboussin is with the Department of Biostatistical Sciences, Wake Forest School of Medicine. John Spangler is with the Department of Family and Community Medicine, Wake Forest School of Medicine.
authors.forename: Kimberly G
authors.initials: KG
authors.lastname: Wagoner
authors.affiliation: Erin L. Sutfin, Beata Debinski, Kimberly G. Wagoner, and Mark Wolfson are with the Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC. Beth A. Reboussin is with the Department of Biostatistical Sciences, Wake Forest School of Medicine. John Spangler is with the Department of Family and Community Medicine, Wake Forest School of Medicine.
authors.forename: John
authors.initials: J
authors.lastname: Spangler
authors.affiliation: Erin L. Sutfin, Beata Debinski, Kimberly G. Wagoner, and Mark Wolfson are with the Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, NC. Beth A. Reboussin is with the Department of Biostatistical Sciences, Wake Forest School of Medicine. John Spangler is with the Department of Family and Community Medicine, Wake Forest School of Medicine.
authors.forename: Mark
authors.initials: M
authors.lastname: Wolfson
mesh_terms: D066300:Electronic Nicotine Delivery Systems / Q000523:psychology / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D009657:North Carolina / Q000453:epidemiology; D012907:Smoking / Q000453:epidemiology* / Q000523:psychology; D013334:Students / Q000523:psychology / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires; D014495:Universities; D014768:Virginia / Q000453:epidemiology