title: Prospective Predictors of Novel Tobacco and Nicotine Product Use in Emerging Adulthood.
abstract: OBJECTIVE
  The purpose of this study was to investigate whether risk factors for cigarette smoking assessed in adolescence predict the use of novel tobacco and nicotine products (hookah, little cigars, and e-cigarettes) in early emerging adulthood.
  
  
  METHODS
  In a longitudinal study (N = 862), risk factors were measured in middle and high school, and novel product use was measured in emerging adulthood (mean age 22.4 years). Structural equation modeling was used to test a model predicting lifetime use of any of hookah, little cigars, and e-cigarettes in early emerging adulthood from distal predictors (gender, maternal smoking through Grade 8; already tried alcohol, cigarettes, or marijuana by Grade 8; and sensation seeking at Grade 8) and potential mediators (intentions to smoke cigarettes, drink alcohol or smoke marijuana at Grade 9, and smoking trajectory across high school).
  
  
  RESULTS
  The most prevalent novel tobacco product was hookah (21.7%), followed by little cigars (16.8%) and e-cigarettes (6.6%). Maternal smoking, having already tried substances, and sensation seeking each predicted the use of at least one of these products via an indirect path through intentions to use substances and membership in a high-school smoking trajectory.
  
  
  CONCLUSIONS
  Risk factors for cigarette smoking were found to predict novel tobacco use, suggesting that interventions to prevent cigarette smoking could be extended to include common novel tobacco products.
authors.affiliation: Oregon Research Institute, Eugene, Oregon. Electronic address: sarah@ori.org.
authors.forename: Sarah E
authors.initials: SE
authors.lastname: Hampson
authors.affiliation: Oregon Research Institute, Eugene, Oregon.
authors.forename: Judy A
authors.initials: JA
authors.lastname: Andrews
authors.affiliation: Oregon Research Institute, Eugene, Oregon.
authors.forename: Herbert H
authors.initials: HH
authors.lastname: Severson
authors.affiliation: Oregon Research Institute, Eugene, Oregon.
authors.forename: Maureen
authors.initials: M
authors.lastname: Barckley
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000523:psychology*; D000367:Age Factors; D000428:Alcohol Drinking / Q000453:epidemiology / Q000523:psychology; D066300:Electronic Nicotine Delivery Systems / Q000009:adverse effects; D005260:Female; D006801:Humans; D033182:Intention; D008137:Longitudinal Studies; D008297:Male; D008385:Marijuana Smoking / Q000453:epidemiology / Q000523:psychology; D009538:Nicotine / Q000008:administration & dosage / Q000009:adverse effects*; D015995:Prevalence; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology / Q000523:psychology*; D013334:Students / Q000523:psychology*; D013997:Time Factors; D062789:Tobacco Products / Q000009:adverse effects; D055815:Young Adult
chemical_list: D009538:Nicotine
keywords: E-cigarettes; Emerging adults; Hookah; Little cigars; Predictors