E-cigarette use and subsequent cigarette and marijuana use among Hispanic young adults

Drug Alcohol Depend. 2016 Jun 1;163:261-4. doi: 10.1016/j.drugalcdep.2016.04.027. Epub 2016 Apr 25.

Abstract

Purpose: Electronic cigarettes (e-cigarettes) could have a multifaceted effect on public health by changing the likelihood that: (a) non-smokers and non-users of marijuana subsequently transition to cigarette and marijuana use, respectively, and/or: (b) cigarette smokers subsequently quit smoking. We analyzed data from a longitudinal study of Hispanic young adults in Los Angeles, California to determine whether e-cigarette use is associated with subsequent cigarette or marijuana use over a one-year period.

Methods: Survey data were collected from 1332 Hispanic young adults (59% female, mean age=22.7 years, SD=0.39 years) in 2014 and 2015. Logistic regression analyses examined the association between e-cigarette use in 2014 and cigarette/marijuana use in 2015, controlling for age, sex, and other substance use.

Results: In 2014, prevalence of past-month use was 9% for e-cigarettes, 21% for cigarettes, and 23% for marijuana. Among past-month cigarette nonsmokers in 2014, those who were past-month e-cigarette users in 2014 were over 3 times more likely to be past-month cigarette smokers in 2015, compared with those who did not report past-month e-cigarette use in 2014 (26% vs. 7%; OR=3.32, 95% CI=1.55, 7.10). Among past-month marijuana non-users in 2014, those who were past-month e-cigarette users in 2014 were nearly 2 times more likely to be past-month marijuana users in 2015 (24% vs. 12%;OR=1.97, 95% CI=1.01, 3.86). Among past-month cigarette and marijuana users in 2014, e-cigarette use in 2014 was not associated with a change cigarette and marijuana use, respectively, in 2015.

Conclusions: Among Hispanic young adults, e-cigarettes could increase the likelihood of transitioning from non-user to user of cigarettes or marijuana and was not associated with smoking cessation.

Keywords: Electronic cigarettes; Hispanic; Marijuana; Young adults.

MeSH terms

  • Adolescent
  • Adult
  • Electronic Nicotine Delivery Systems / statistics & numerical data*
  • Electronic Nicotine Delivery Systems / trends
  • Female
  • Hispanic Americans / psychology*
  • Humans
  • Longitudinal Studies
  • Los Angeles / ethnology
  • Male
  • Marijuana Smoking / ethnology*
  • Marijuana Smoking / psychology
  • Marijuana Smoking / trends
  • Smoking / ethnology*
  • Smoking / psychology*
  • Smoking / trends
  • Smoking Cessation / ethnology
  • Smoking Cessation / psychology
  • Surveys and Questionnaires
  • Tobacco Products
  • Young Adult