This paper identifies predictors of trial and current use, and reasons for trying and ceasing use of electronic cigarettes (e-cigarettes) among young adults, with particular attention to former and never smokers. Data are from a mail survey of a population-based sample of adults aged 18 to 35 (N = 4740) in three U.S. metropolitan areas. Survey items assessed trial and use of e-cigarettes, cigarette smoking status, and reasons for trial and for ceasing use of e-cigarettes. Almost 23% reported trial of e-cigarettes, and 8.4% reported using them in the past month. Current smokers were much more likely to have tried e-cigarettes (70.2%) than both former (32.3%) and never smokers (7.6%; p < 0.001) and to have used them in the past month (30.8%, 10.1%, 2.0% respectively; p < 0.001). Smoking status and scores on sensation seeking were significant independent predictors of both trial and current use of e-cigarettes. Never-smokers cite curiosity as the reason for trying e-cigarettes and also that their friends used them. The most frequent reason for ceasing use among never and former smokers was health concerns. For virtually none of them were e-cigarettes their first exposure to nicotine.

This study assessed the relationship between community characteristics and alcohol use among 6,636 youth, aged from 14 to 20, in 2004. After adjusting for individual-level characteristics, youth from communities with a greater proportion of grandparents as caregivers, larger numbers of married couple families, and higher employment rates were significantly less likely to report past 30-day alcohol use. Youth from communities with higher median household income were significantly more likely to report past 30-day alcohol use. Adolescents in communities with a greater percentage of whites were significantly more likely to report binge drinking. The results indicate that the community context is an important predictor of alcohol use.

Objective: To examine gender differences in obtaining free alcohol, high-risk drinking, and consequences. Methods: Web-based surveys were administered annually (2003-2005) to random samples of undergraduates (N=10,729). Results: Gender, race, age under 21, sorority/fraternity membership, lower disposable income, and relationship status were significant predictors of obtaining free alcohol. Frequent obtainers had greater odds of heavy episodic drinking and consequences compared to infrequent obtainers. Females were less likely to report heavy episodic drinking; however, frequently obtaining females were more likely to report heavy episodic drinking. Conclusions: Approximately 25% of undergraduates frequently obtained free alcohol. Females obtained more often, had higher odds of high-risk drinking, and experienced fewer consequences compared to males.

Prescription-opioid misus e continues to be a significant health concern in the United States. The relationship between marijuana use and prescription-opioid misuse is not clear from the extant literature. This study examined national trends in prescription-opioid misuse among marijuana users and non-users using the 2007–2017 National Survey on Drug Use and Health. Cochran–Armitage tests were used to assess the statistical significance of changes in the yearly prevalence of prescription-opioid misuse and marijuana use. Multivariable logistic regression was used to examine the association between prescription-opioid and marijuana use adjusting for sociodemographic characteristics. From 2007 to 2017, marijuana use increased, while prescription-opioid misuse declined. Larger declines in prescription-opioid misuse were found among marijuana users than non-users. Marijuana ever-use was significantly associated with prescription-opioid misuse. Specifically, marijuana ever-users had higher odds of prescription-opioid misuse (ever-misuse [OR: 3.04; 95% CI, 2.68–3.43]; past-year misuse [OR: 3.44; 95% CI, 3.00–3.94]; and past-month misuse [OR: 4.50; 95% CI, 3.35–6.05]) compared to marijuana never-users. Similar results were found for the association of past-year and past-month marijuana use with prescription-opioid misuse. This study provides data on trends and associations about opioid misuse among marijuana users and non-users in a changing social environment of drug use in the United States. Future research should consider whether there is a causal relationship between marijuana use and prescription opioid misuse.