E-cigarette use of young adults motivations and associations with combustible cigarette alcohol, marijuana, and other illicit drugs

Marketing Strategies and Consumer and Sellers Perception About Oral Nicotine Pouches in Karachi, Pakistan

Background: The availability of novel nicotine products like oral nicotine pouches (ONP) has been rising in South Asian countries, including Pakistan. We aimed to assess ONP marketing strategies at point-of-sale (POS) and understand the perceptions among consumers and sellers regarding its use in Karachi, Pakistan. Methods: We conducted a mixed-methods study in low, middle, and high socioeconomic neighborhoods of District East Karachi. For the quantitative component, we used a cross-sectional design, collecting data through observations and surveys. The observation checklist included items about advertising, product placement, display, and promotional aids. The survey questionnaire included questions on marketing tactics, product placement, and advertising strategies for ONP. For the qualitative component, we conducted in-depth interviews with ONP consumers and sellers to explore their perceptions and understand marketing strategies. Frequencies and percentages were used to report quantitative data, while thematic analysis was conducted for qualitative findings. Results: We observed 90 POS of ONP and found that 20% (n = 18) were located within 200 meters of schools. ONP advertisements were found in 67% (n = 60) of the surveyed shops, 59% (n = 53) displayed ONP next to candy, and 70% (n = 63) displayed at child's eye level. A higher proportion of consumers (n = 66, 73%) use ONP as a cessation aid for tobacco. Most sellers (n = 48, 53%) were approached by the companies to sell ONP, and 40% received a commission while achieving the targets on ONP sell. About one-fourth of sellers (n = 21, 23%) reported selling ONP to students less than 18 years. Our qualitative findings revealed marketing strategies, peer influence, ease of use in tobacco-restricted areas, and the perception of reduced harm compared to cigarettes as key drivers of ONP consumption. Conclusion: Our study highlights a critical public health concern and offers valuable insights that could inform the development of policies to regulate tobacco sales.

Nicotine-Containing Electronic Nicotine Delivery Systems (ENDS) Use in the United States, Stratified by Age, National Survey on Drug Use and Health, 2021

Background: Electronic nicotine delivery system (ENDS) use is prevalent in the United States, especially among youth and young adults. It is important to monitor current ENDS use and identify at-risk groups, particularly among tobacco naïve individuals. Methods: Using data from the 2021 National Survey on Drug Use and Health, we examined the prevalence of past 30-day nicotine/tobacco ENDS use and correlates, stratified by age. Results: The prevalence of past 30-day ENDS use was as follows: ages 12-17 (5.0%), ages 18-20 (13.5%), ages 21-25 (14.6%), ages 26-34 (7.2%), and ages ≥35 (2.5%). Among youth ages 12-17, female respondents were more likely to report past 30-day ENDS use compared to male respondents (aOR = 1.41, 95% CI = 1.01-1.97). Among all adult age groups, current cigarette smoking status was associated with an increased likelihood of current ENDS use, versus never smoking. Among all age groups, those reporting non-Hispanic Black, non-Hispanic Other, and Hispanic race/ethnicity had a decreased likelihood of past 30-day ENDS use versus non-Hispanic White respondents, while past-year drug/alcohol use disorder, versus no use disorder, was associated with an increased likelihood of past 30-day ENDS use. Conclusions: ENDS use was most prevalent among young adults and least prevalent among persons ages ≥35. Most youth who reported ENDS use also reported never smoking cigarettes-compared to adults who reported ENDS use, who primarily reported current or former cigarette smoking. Our findings-which have identified characteristics of those most likely to use ENDS products-have the potential to inform screening and targeted intervention efforts aimed at reducing ENDS use.

Rethinking rural: Public health advocates' views on ENDS cessation for young adults in rural areas

Electronic nicotine delivery systems (ENDS, commonly referred to as e-cigarettes), have become popular among young adults (YAs, 18-24 years) in the United States. YAs in rural areas increasingly consume more ENDS than those in urban areas. However, there is a knowledge gap regarding the perspectives of public health advocates (PHAs) on ENDS use and cessation among YAs in rural areas. The objectives of the study are to describe the perspectives of PHAs and identify strategies to strengthen the capacity for promoting the cessation of ENDS among YAs in rural communities. A qualitative study and interpretive description were used with semi-structured interviews. The content analysis was used to analyze the data. Twenty-two PHAs, including public health officers, nurses, and tobacco-free educators, from Wisconsin, Minnesota, and North Dakota, were invited to the semi-structured interviews. Four themes emerged: (a) Perceived ENDS use and cessation; (b) rural contexts and infrastructure influencing ENDS use; (c) essential public health responsibilities controlling ENDS use in rural areas; and (d) regulating ENDS use: Policies and law. PHAs stressed the importance of increased awareness of ENDS use in YAs, improved regulation, and tailored policies to tackle rural communities' distinct challenges. The study emphasizes the urgency for specialized programs to aid YAs in quitting ENDS in rural areas. A comprehensive strategy is needed to effectively address ENDS use among YAs in rural areas, involving education, policy adjustments, and community-based initiatives.

The underrepresentation of racial/ethnic minorities in research on co-use of nicotine, alcohol, and/or cannabis via ecological momentary assessment methods: A narrative review

BACKGROUND

Co-use of nicotine, alcohol and/or cannabis is common among adults in the United States. Co-use may represent greater addiction severity than single substance use. Recent studies have examined the extent to which the frequency, order, simultaneity, motivations, and contextual factors associated with co-use differ from that of single use. Co-use has become prevalent among racial/ethnic minority individuals who exhibit distinct co-use patterns and related outcomes; however, most of these studies rely on cross-sectional or sparse longitudinal observations. Ecological momentary assessment (EMA) can illuminate such patterns and associations with time-varying contexts. This review summarizes EMA studies on co-use published from 2008 to 2023 involving racial/ethnic minority individuals and point to gaps. Our review addresses: 1) whether use of one substance leads to substitution or complementary use of another, 2) whether antecedents/contexts differ by co-use patterns and minority status, and 3) what consequences of co-use have been documented across co-use patterns or minority status.

METHODS

Search results yielded 465 articles, with 33 meeting inclusion criteria. We extracted study-level characteristics and synthesized the findings.

RESULTS

The findings largely focused on co-use patterns, categories of co-use, proximal antecedents and contexts, and consequences. Variations by minority status were rarely examined; few examined acute effects of unique experiences that may contribute to co-use among racial/ethnic minority adults.

CONCLUSIONS

The EMA literature on co-use is burgeoning in recent years and supports complementary hypothesis. More research to capture time-intensive data on experiences to contextualize the co-use among racial/ethnic minority groups with greater diversity in race/ethnicity is warranted.

"I've lost my children to vaping": A frame analysis of the Australian media's construction of the "Youth vaping crisis"

BACKGROUND

Youth vaping has become an issue of extreme concern in the Australian public and political discourse, recently culminating in the announcement of further restrictions on the sale and use of nicotine vaping products (NVPs) by the Federal Government. We examine how youth vaping has been framed in the Australian news media in the six months leading up to the announcement of these new measures in May 2023.

METHODS

Drawing a sample from the Factiva database, we conducted a frame analysis on articles published during this six month period, identifying media framings that included the necessary components of a distinct Problem Definition, Causal Attribution, Moral Evaluation, and Treatment Recommendation.

RESULTS

We identified 123 relevant articles, and four dominant framings being applied. Most common was that of A Failure of Control, followed by A Poisonous Epidemic, A Health Behaviour Needing Regulation, and A Moral Failure.

CONCLUSION

These findings are discussed in the context of moral panic theory and how framings are constructed by the media in collaboration with policy actors to support particular policy measures.

An ecological examination of early adolescent e-cigarette use: A machine learning approach to understanding a health epidemic

E-cigarette use among adolescents is a national health epidemic spreading faster than researchers can amass evidence for risk and protective factors and long-term consequences associated with use. New technologies, such as machine learning, may assist prevention programs in identifying at risk youth and potential targets for intervention before adolescents enter developmental periods where e-cigarette use escalates. The present study utilized machine learning algorithms to explore a wide array of individual and socioecological variables in relation to patterns of lifetime e-cigarette use during early adolescence (i.e., exclusive, or with tobacco cigarettes). Extant data was used from 14,346 middle school students (Mage = 12.5, SD = 1.1; 6th and 8th grades) who participated in the Utah Prevention Needs Assessment. Students self-reported their substance use behaviors and related risk and protective factors. Machine learning algorithms examined 112 individual and socioecological factors as potential classifiers of lifetime e-cigarette use outcomes. The elastic net algorithm achieved outstanding classification for lifetime exclusive (AUC = .926) and dual use (AUC = .944) on a validation test set. Six high value classifiers were identified that varied in importance by outcome: Lifetime alcohol or marijuana use, perception of e-cigarette availability and risk, school suspension(s), and perceived risk of smoking marijuana regularly. Specific classifiers were important for lifetime exclusive (parent's attitudes regarding student vaping, best friend[s] tried alcohol or marijuana) and dual use (best friend[s] smoked cigarettes, lifetime inhalant use). Our findings provide specific targets for the adaptation of existing substance use prevention programs to address early adolescent e-cigarette use.

Experiences and Perceptions of E-Cigarette Cessation for Young Adults in Rural Communities

BACKGROUND

Electronic nicotine delivery systems (ENDS), also known as e-cigarettes, are the most commonly used tobacco products among young adults in the United States. Young adults in rural areas have a higher prevalence of ENDS use compared to their urban counterparts, yet there is limited evidence regarding the in-depth understanding of experiences and perspectives directly from young adults.

OBJECTIVES

The aim of this study was to explore individual experiences and perspectives about use and cessation of ENDS from young adults in rural areas.

METHODS

This was a qualitative study using interpretive description for analysis. Young adults (18-24 years) who used ENDS every day but not other tobacco products (cigarettes, smokeless, etc.) in the past month and had an address in a rural county of Wisconsin were eligible; there were nine participants interviewed using Zoom. Interview questions focused on initial use, maintenance of use, experiences of quitting, and social and rural environmental contexts regarding ENDS.

RESULTS

Three themes emerged with eight categories: (a) addiction to ENDS and health, (b) cessation and resources, and (c) rural environment and culture in ENDS addiction.

DISCUSSION

Findings have implications for ENDS cessation interventions targeting young adults in rural areas.

Association of racial discrimination in health care settings and use of electronic cigarettes to quit smoking among Black adults

INTRODUCTION

Black people are disproportionately burdened by tobacco-related diseases and are less successful at cigarette cessation with current treatments. We know little about the effectiveness of e-cigarettes as a smoking cessation method compared to currently approved methods in Black adults who smoke. Many Black adults report experiencing racial discrimination in health care, but if discrimination is related to utilization of smoking cessation aids including e-cigarettes and success with smoking cessation in this population is unclear. Therefore, this exploratory study aimed to understand how negative experiences and racial discrimination in health care influence use of e-cigarettes for cigarette cessation and success with cigarette cessation among Black adults.

METHODS

The study interviewed 201 Black adults who used cigarettes and tried to quit in their lifetime from the Family and Community Health Study in 2016. The study asked if they had tried and successfully quit cigarettes with e-cigarettes vs. other methods (support groups, medications, nicotine replacement therapies, call-in help lines, cold turkey [quit on their own], counseling) and asked about their negative experiences and racial discrimination in health care. We performed separate logistic regressions that evaluated the association of negative experiences and racial discrimination in health care with 1) use of e-cigarettes for cigarette cessation vs. other quitting methods and 2) success with cigarette cessation using any method among Black adults while controlling for age, sex, socioeconomic status, health insurance status, and age of onset of cigarette use.

RESULTS

More reported negative experiences and racial discrimination in health care were associated with ever trying to quit with e-cigarettes compared to other methods (OR:1.75, 95 % CI [1.05-2.91]), but negative experiences and racial discrimination in health care were not associated with cigarette quitting success. Interestingly, trying e-cigarettes was associated with being less successful at quitting compared to using other methods to quit smoking (OR: 0.40, 95 % CI [0.20, 0.81]).

CONCLUSIONS

These results suggest that educating health care professionals that anticipated discrimination in health care settings may be driving Black adults who smoke to engage in non-evidence-based smoking cessation practices, such as e-cigarettes instead of those that are evidence-based, and may be more effective in this population.

Cardiopulmonary Impact of Electronic Cigarettes and Vaping Products: A Scientific Statement From the American Heart Association

Vaping and electronic cigarette (e-cigarette) use have grown exponentially in the past decade, particularly among youth and young adults. Cigarette smoking is a risk factor for both cardiovascular and pulmonary disease. Because of their more limited ingredients and the absence of combustion, e-cigarettes and vaping products are often touted as safer alternative and potential tobacco-cessation products. The outbreak of e-cigarette or vaping product use-associated lung injury in the United States in 2019, which led to >2800 hospitalizations, highlighted the risks of e-cigarettes and vaping products. Currently, all e-cigarettes are regulated as tobacco products and thus do not undergo the premarket animal and human safety studies required of a drug product or medical device. Because youth prevalence of e-cigarette and vaping product use was as high as 27.5% in high school students in 2019 in the United States, it is critical to assess the short-term and long-term health effects of these products, as well as the development of interventional and public health efforts to reduce youth use. The objectives of this scientific statement are (1) to describe and discuss e-cigarettes and vaping products use patterns among youth and adults; (2) to identify harmful and potentially harmful constituents in vaping aerosols; (3) to critically assess the molecular, animal, and clinical evidence on the acute and chronic cardiovascular and pulmonary risks of e-cigarette and vaping products use; (4) to describe the current evidence of e-cigarettes and vaping products as potential tobacco-cessation products; and (5) to summarize current public health and regulatory efforts of e-cigarettes and vaping products. It is timely, therefore, to review the short-term and especially the long-term implications of e-cigarettes and vaping products on cardiopulmonary health. Early molecular and clinical evidence suggests various acute physiological effects from electronic nicotine delivery systems, particularly those containing nicotine. Additional clinical and animal-exposure model research is critically needed as the use of these products continues to grow.

Dampened psychobiological responses to stress and substance use in adolescence

Substance use increases throughout adolescence, and earlier substance use may increase risk for poorer health. However, limited research has examined whether stress responses relate to adolescent substance use, especially among adolescents from ethnic minority and high-adversity backgrounds. The present study assessed whether blunted emotional and cortisol responses to stress at age 14 related to substance use by ages 14 and 16, and whether associations varied by poverty status and sex. A sample of 277 Mexican-origin youth (53.19% female; 68.35% below the poverty line) completed a social-evaluative stress task, which was culturally adapted for this population, and provided saliva samples and rated their anger, sadness, and happiness throughout the task. They also reported whether they had ever used alcohol, marijuana, cigarettes, and vaping of nicotine at age 14 and again at age 16. Multilevel models suggested that blunted cortisol reactivity to stress was associated with alcohol use by age 14 and vaping nicotine by age 16 among youth above the poverty line. Also, blunted sadness and happiness reactivity to stress was associated with use of marijuana and alcohol among female adolescents. Blunted stress responses may be a risk factor for substance use among youth above the poverty line and female adolescents.

The association between dual use of electronic nicotine products and illicit drugs with adverse cardiovascular and respiratory outcomes in a longitudinal analysis using the Population Assessment of Tobacco and Health (PATH) survey

Background

Drug use and electronic nicotine delivery systems (ENDS) are independently associated with increased risk of cardiovascular and respiratory outcomes. Literature on the association between the dual use of these key substances and potential health outcomes is limited.

Methods

We examined the association between dual use of ENDs and drugs (including heroin, methamphetamine, cocaine, painkillers, and misused stimulant medications) with adverse cardiovascular and respiratory outcomes in a longitudinal analysis using waves 1-5 from the Population Assessment of Tobacco and Health survey (2014-2018). Multivariable logistic regression with Generalized Estimating Equations was utilized.

Results

About 0.9% (n = 368) of respondents at wave 2 used both ENDS and drugs, 5.1% (n = 1,985) exclusively used ENDS, and 5.9% (n = 1,318) used drugs. Compared with people who do not use drugs, both those who used only ENDS (Adjusted Odds Ratio (AOR) 1.11 [95% CI 0.99-1.23], P = 0.07758) and those who used only drugs (AOR 1.36 [95% CI 1.15-1.60], P = 0.00027) were more likely to experience adverse respiratory conditions. Individuals who used drugs and ENDS compared to people who did not use drugs or ENDS had the largest odds of respiratory problems among all drug use category comparisons (AOR 1.52 [95% CI 1.20-1.93], P = 0.00054). Individuals who only used drugs had elevated odds of cardiovascular ailments compared to people who did not use drugs or ENDS (AOR 1.24 [95% CI 1.08-1.42], P = 0.00214) and compared to people who only used ENDS (AOR 1.22 [95% CI 1.04-1.42], P = 0.0117).

Conclusions

Inhaling electronic nicotine delivery systems and other substances may negatively affect the users' respiratory health.

Profile of Brazilian Undergraduates Who Use Electronic Cigarettes: a Cross-Sectional Study on Forbidden Use

The use of electronic cigarettes (e-cigarettes) persists in Brazil, despite restrictions on sales, imports, and advertising. This study aimed to identify the prevalence of e-cigarette use and user profiles among university students. This cross-sectional study used a convenience sample of 3083 university students (female = 2253, male = 830; M=26.1; SD =8.43) who completed an online survey. We employed logistic regression models and network analysis to determine the profile of e-cigarette users. The prevalence of e-cigarette use in the past year was 12.2% (n =377). Men, single individuals, Caucasians, secular individuals, and non-heterosexual individuals were more likely to engage in e-cigarette use. Intense use of alcohol, tobacco products, and illicit drugs increased the likelihood of e-cigarette use. Brazilian college students continue to use electronic cigarettes despite the prohibition. The pattern of alcohol abuse and tobacco product use among e-cigarette users is concerning. These risky behaviors render young and highly educated individuals targets for public policies to control and regulate electronic cigarettes in the country.

Within-person associations of escalated electronic nicotine delivery systems use with cigarette, alcohol, marijuana and drug use behaviors among US young adults

AIMS

Most extant evidence has addressed between-person differences, short-term or cross-sectional associations of electronic nicotine delivery systems (ENDS) use with other substance use, the majority focusing on current rather than escalated use. The present study aimed to examine within-person changes in escalated ENDS use and their associations with individual and combined substance use over a 6-year period.

DESIGN, SETTING AND PARTICIPANTS

This study used a longitudinal cohort design with US young adults. A generalized linear mixed-model approach was employed to fit a series of weighted logistic regression models. Data were drawn from waves 1-5 of the Population Assessment of Tobacco and Health (PATH) study in the United States. Of the 9110 young adults at baseline, aged 18-24 years, a total of 5042 individuals had matched data across all five waves of assessments.

MEASUREMENTS

Escalated ENDS use was computed by subtracting the number of days of ENDS use within the past 30 days at wave w - 1 from that at wave w and coded as 1 = escalated, if the value was greater than zero (otherwise, coded as 0 = not escalated).

FINDINGS

Escalated ENDS use gradually decreased over time, with the lowest prevalence at wave 4 (4.0%) but sharply increasing at wave 5 (8.4%). Escalated ENDS use was associated with increased odds of using each substance (binge drinking, marijuana use, marijuana vaping, prescription and illicit drugs) and different combinations of polysubstance use between cigarette smoking, binge drinking and marijuana use (Ps < 0.05). In addition, sweet/fruit flavor use (versus menthol/mint) was associated with increased likelihood of reporting co-use of cigarettes and marijuana.

CONCLUSIONS

In the United States, the prevalence of young adults using electronic nicotine delivery systems appears to have increased steadily between 2013 and 2019, although the rate of increase may have started to accelerate in recent years. Escalated electronic nicotine delivery systems use and time-lagged established electronic nicotine delivery systems use appear to be prospectively associated with individual and combined substance use, particularly between cigarettes, alcohol and marijuana. Among established electronic nicotine delivery systems users, sweet/fruit flavor appears to be associated with increased risk of co-using cigarettes and marijuana.

Neighborhood Characteristics and the Burden of E-Cigarette, or Vaping, Product Use-Associated Lung Injury: An Ecological Comparison Study

Purpose: E-cigarette, or vaping, product use-associated lung injury (EVALI) is a severe consequence of vaping first described in 2019. Investigating associations between neighborhood-level characteristics and EVALI cases is an important step in identifying at-risk communities to implement future targeted prevention programs. Methods: We retrospectively identified 41 adolescents <19 years hospitalized for treatment for EVALI at Children's Medical Center Dallas from December 2018 to June 2021. Patient ZIP codes were extracted from the electronic medical record and were compared with Dallas area ZIP codes containing no EVALI cases. Socioeconomic status (SES) characteristics were obtained from the 2019 American Community Survey, and they were mapped for ZIP codes using ESRI ArcMap geospatial processing software. A parallel analysis was conducted utilizing data of adolescents hospitalized with appendicitis. Results: Ninety-five percent of our cohort used tetrahydrocannabinol-containing products, and 66% obtained their vaping products from informal sources. EVALI cases were less likely to reside in higher SES ZIP codes as measured by the proportion of the population with at least a high school education (odds ratio [OR]: 0.95, 95% confidence interval [CI]: 0.92-0.99), access to broadband access (OR: 0.95, 95% CI: 0.91-0.99), and private health insurance (OR: 0.97, 95% CI: 0.95-0.99). Alternatively, they were more likely to reside in lower SES ZIP codes as measured by proportion of the population without any health insurance (OR: 1.07, 95% CI: 1.01-1.12). No neighborhood level low SES characteristics were associated with appendicitis hospitalizations. Conclusions: Although small in magnitude, EVALI cases were associated with lower SES ZIP codes but not with vape shop density.

Associations Between E-cigarettes and Subsequent Cocaine Use in Adolescence: An Analysis of the UK Millennium Cohort Study

INTRODUCTION

Nicotine exposure via early combustible cigarette smoking can prime the adolescent brain for subsequent cocaine use. However, there is limited evidence whether e-cigarette use, a nicotine delivery system that is increasingly popular among youth, is associated with later cocaine use. We examine the association between e-cigarette use by the age of 14 years and cocaine use by the age of 17 years.

AIMS AND METHODS

The Millennium Cohort Study is a nationally representative sample of 18 552 9-month-old children born between September 2000 and January 2002 in the United Kingdom. Follow-up interviews and surveys were collected from children and their caregivers at modal ages 3, 5, 7, 9, 11, 14, and 17 years. Our analytic sample included 340 youth who had used e-cigarettes by age 14 years (exposure variable), matched using coarsened exact matching, to 4867 nicotine naïve youth on childhood common liability confounders and demographics measured from infancy to age 11. The outcome was cocaine use by the modal age of 17 years.

RESULTS

Of the 5207 successfully matched youth, 7.6% of adolescent e-cigarette users by age 14 years used cocaine by age 17 years versus 3.1% of non-e-cigarette users. Multivariable logistic regression in the matched sample indicated that e-cigarette use by age 14 years was associated with 2.7 times higher odds of cocaine use by age 17 years (95% CI, 1.75 to 4.28).

CONCLUSIONS

These findings in a UK sample showed that e-cigarette use in early adolescence is associated with higher odds of cocaine use later in adolescence, similar to risks posed by tobacco cigarette smoking.

IMPLICATIONS

In this large-scale prospective cohort study (n = 5207), youth who had used e-cigarettes by the age of 14 years were matched to nicotine naïve youth on childhood common liability confounders and demographics measured from infancy to age 11 years (e.g. school engagement, risk-taking propensity, delinquency, peer and parental smoking, parental educational attainment). After matching, 7.6% of age 14 years e-cigarette users had subsequently used cocaine by the age of 17 years versus 3.1% of non-e-cigarette users. Although e-cigarettes are promoted as a strategy for nicotine-dependent users to reduce the harms of combustible cigarettes, the evidence here suggests that for nicotine naïve youth, they may increase the risk of subsequent cocaine use.

Vaping and Sleep as Predictors of Adolescent Suicidality

PURPOSE

To investigate sleep quantity as a moderator of vaping and self-reported suicidality among adolescents.

DESIGN

Cross-sectional. Setting: United States high schools.

SAMPLE

10,520 high-school students with complete data on the primary outcome of suicide attempt in the past year (76.9% response rate).

MEASURES

2019 Youth Risk Behaviors Survey.

ANALYSIS

Logistic regression to examine main effects and potential moderation.

RESULTS

Students with under seven sleep hours on school nights (OR = 2.6; 95% CI = 2.1-3.3) and who vaped in the past month (OR = 3.0; 95% CI = 2.1-3.9) had higher odds of attempting suicide in the last year. Sleep quantity moderated the relationship between vaping and suicidal thoughts in the past year (P = .01) but did not moderate the relationship between vaping and a suicide plan (P = .15) or suicide attempts (P = .06). Specifically, vaping had a smaller effect on suicidal thoughts among students who slept under seven hours on school nights (OR = 1.8) compared to the descriptively larger effect among participants with more sleep (OR = 2.5).

CONCLUSIONS

Students who vape or report low sleep quantity would be ideal participants in suicide prevention interventions as they may be at higher risk for suicidality. Organizations implementing sleep or vaping interventions should incorporate information regarding the higher odds of suicide among students with low sleep quantity or vaping habits.

Examining the Efficacy of Project ECHO to Improve Clinicians' Knowledge and Preparedness to Treat Adolescent Vaping

As adolescent vaping reaches epidemic rates in the United States, it is imperative that pediatric clinicians have access to medical knowledge on best practices for screening, assessing, and treating vaping-related substance use. The Teen Vaping ECHO (Extension for Community Healthcare Outcomes) program was developed to offer practical learning sessions focused on clinical management of adolescent vaping. This study describes the development, implementation, and evaluation of the program's impact on participants' knowledge, attitudes, and practices regarding treatment of adolescent vaping from registration to the end of the series. Participants were generally knowledgeable about vaping at registration and reported significant increases in comfort talking with patients about vaping, counseling patients on nicotine replacement products, and frequency of implementing best-practice screening strategies at the end of the series. This study suggests ECHO programs focused on improving clinical management of adolescent vaping may increase accessibility of evidence-based care and reduce harms associated with vaping in youth.

Adolescents' own views on their risk behaviors, and the potential effects of being labeled as risk-takers: A commentary and review

Adolescents are stereotypically viewed as risk-takers ("stereotypical risk-takers") in science, mainstream media, fictional literature and in everyday life. However, increasing research suggests that adolescents do not always engage in "heightened" risk-taking, and adolescents' own perspectives (motives) on risk-taking are largely neglected in research. Hence, this paper is a commentary and review with two aims. First, taking a cross-national perspective, we discuss the definition of adolescence and risk behavior. We argue that much of the research on what drives adolescent risk behavior (e.g., substance use) focuses on the harms that this behavior promotes rather than on the need to explore and grow into adulthood. Thereafter we summarize the dominant approach to studying motives behind substance use, which has mostly considered young adults, and which has typically not focused on adolescents' own self-generated motives. The few empirical studies (including one of our qualitative studies) on adolescents' own motivations for engaging in risk behavior (i.e., cannabis use, alcohol use, and tobacco smoking) show that the most frequently mentioned motives by adolescents were being cool/tough, enjoyment, belonging, having fun and experimenting and coping. Interestingly, the "cool/tough identity" motive is virtually overlooked in research on adolescent risk-taking. The above-mentioned motives, however, generally support newer theories, such as the Developmental Neuro-Ecological Risk-taking Model (DNERM) and the Life-span Wisdom Model that suggest that adolescents' motivations to engage in risk-taking include experimentation, identity development, explorative behavior, and sensation seeking, all of which run counter to the stereotype of adolescents engaging in risk-taking due to "storm and stress." Hence, we also briefly consider additional recent attempts to study positive forms of risk taking. Second, extrapolating from sociological/criminological theories on labeling, we suggest that caution is warranted when (inaccurately) labeling adolescents as the "stereotypical risk-takers," because this can instigate a risk-taking identity in adolescents and/or motivate them to associate with risk-taking peers, which could in turn lead to maladaptive forms of risk-taking. Empirical research testing these hypotheses is needed. To conclude we argue that research on adolescent risk-taking could further benefit from considering adolescent's own motivations, which is also in line with the participatory approach advocated by international children's rights standards.

The Influence of COVID-19 Pandemic on the Frequent Use of E-Cigarettes and Its Association with Substance Use and Mental Health Symptoms

BACKGROUND

Although several studies examined the association between e-cigarettes, substance use, and mental health conditions, there is limited research on whether COVID-19-related stress and health outcomes, mental health symptoms, and substance use differ by the frequency of e-cigarette use during the COVID-19 pandemic. We assessed the association of past 30-day frequent use of e-cigarettes with alcohol, cannabis, anxiety/depression, and COVID-19 impact.

METHODS

We conducted a national online cross-sectional survey among a random sample of US adults aged 18 years or older (N = 5065) between 13 May 2021, and 9 January 2022. A multinomial logistic regression analysis was performed to assess the study aims.

RESULTS

Of the participants, 7.17% reported once to several times per month (OSTPM), 6.95% reported once to several times per week (OSTPW), and 6.57% reported every day to several times per day (ESTPD) use of e-cigarettes in the past month. Alcohol and cannabis use ESTPD and once to several times per week/month (OSTPW/M) were associated with a higher likelihood of e-cigarette use ESTPD and OSTPW/M, respectively. Anxiety/depression was associated with e-cigarette use ESTPD and OSTPW. Individuals who considered social distancing to be stressful were more likely to use e-cigarettes ESTPD and OSTPW/M compared to those that considered social distancing as not stressful.

CONCLUSION

Individuals who engaged in the frequent use of alcohol or cannabis, had depression/anxiety, and considered social distancing to be stressful were more likely to engage in frequent e-cigarette use. Improving efforts geared toward reducing the use of substances may help decrease the health risks associated with e-cigarette use.

Characteristics of Adults Who Use Both Marijuana and E-Cigarette, or Vaping, Products: A Cross-Sectional Study, Utah, 2018

OBJECTIVES

Among young people, dual use of marijuana and e-cigarette, or vaping, products (EVPs) is linked with using more inhalant substances and other substances, and poorer mental health. To understand antecedents and potential risks of dual use in adults, we analyzed a representative adult population in Utah.

METHODS

We used data from the 2018 Utah Behavioral Risk Factor Surveillance System (n = 10 380) and multivariable logistic regression to evaluate differences in sociodemographic characteristics, comorbidities, and risk factors among adults aged ≥18 who reported currently using both EVPs (any substance) and marijuana (any intake mode), compared with a referent group of adults who used either or neither.

RESULTS

Compared with the referent group, adults using EVPs and marijuana had greater odds of being aged 18-29 (adjusted odds ratio [aOR] = 12.44; 95% CI, 6.15-25.14) or 30-39 (aOR = 3.75; 95% CI, 1.73-8.12) versus ≥40, being male (aOR = 3.29; 95% CI, 1.82-5.96) versus female, reporting ≥14 days of poor mental health in previous 30 days (aOR = 2.30; 95% CI, 1.23-4.32) versus <14 days, and reporting asthma (aOR = 2.09; 95% CI, 1.02-4.31), chronic obstructive pulmonary disorder (aOR = 2.94; 95% CI, 1.19-7.93), currently smoking cigarettes (aOR = 4.56; 95% CI, 2.63-7.93), or past-year use of prescribed chronic pain medications (aOR = 2.13; 95% CI, 1.06-4.30), all versus not.

CONCLUSIONS

Clinicians and health promotion specialists working with adults using both EVPs and marijuana should assess risk factors and comorbidities that could contribute to dual use or associated outcomes and tailor prevention messaging accordingly.

A Mixed-Methods Study on Use of Different Tobacco Products among Younger and Older Adults with Lower and Higher Levels of Nicotine Exposure in California in 2019-2020

An increasing number of tobacco products are entering the market, offering a variety of options to attain desired nicotine intake. However, little is known about the effect of this diverse marketplace on the experiences and nicotine exposure among tobacco users. A mixed-methods study examined experiences with tobacco products among individuals with relatively lower or higher levels of biomarkers of nicotine exposure. Semi-structured interviews were conducted with younger and older adults to examine tobacco use behaviors, addiction to tobacco products, and nicotine effects. Younger and older adults provided similar narratives about addiction and nicotine effects, which were similar across age groups, product types (i.e., ENDS, combustible cigarettes, or oral tobacco products), and having lower or higher nicotine exposure. Some individuals with higher nicotine exposure who switched from combustible cigarettes to another product (e.g., ENDS) found similar or greater access and perceived addiction to nicotine. Adults with higher and lower levels of nicotine exposure provided narratives consistent with features of nicotine addiction, regardless of age and products used. Availability of multiple tobacco products may be associated with greater access and exposure to nicotine. Addiction may occur at low levels of use and with non-cigarette products.

Harm perceptions, JUUL dependence, and other tobacco product use among young adults who use JUUL

INTRODUCTION

The study identified groups of JUUL using young adults based on their use patterns and compared harm perceptions, JUUL dependence, and other tobacco product use among these groups.

METHODS

Online cross-sectional survey data were gathered in March 2019 from 667 undergraduate students who used JUUL weekly (50.4% females, average age: 20.3 years) at a southwest U.S. university.

RESULTS

Latent class analysis identified four groups of young adults who used JUUL: 1) Light Social JUUL Using Young Adults (LS, 52.5%) who used JUUL occasionally with friends when drinking alcohol, 2) Daily Sensation Seekers (DSS, 16.2%) who used JUUL daily with alcohol, 3) Daily Activity Driven JUUL Using Young Adults (DAD, 26.0%) who used JUUL daily while drinking, watching media, or studying, and 4) Daily All Occasion JUUL Using Young Adults (DAO, 5.3%) who used JUUL heavily, daily and in various occasions. While all four groups reported some extent of JUUL dependence, DAO reported the highest dependence and were more likely than LS to have used cigarettes and other e-cigarettes besides JUUL. They also tended to believe different pod flavors could cause different types of lung damage while the other groups were unsure/disagreed with this belief. LS were more likely than DSS and DAD to believe that JUUL use indicated openness to new experiences.

CONCLUSION

Young adults with different JUUL use patterns perceived JUUL harms differently and faced varied risks of JUUL dependence and other tobacco product use. Effective cessation interventions should be adapted to meet the needs of these groups.

Concurrent use of e-cigarettes and cannabis and associated COVID-19 symptoms, testing, and diagnosis among student e-cigarette users at four U.S. Universities

Introduction

This investigation assessed whether current (past 30-day) electronic cigarette (e-cigarette) and cannabis use was associated with coronavirus disease 2019 (COVID-19) symptomatology, testing, and diagnosis among college student e-cigarette users.

Methods

Participants were 18–26-year-old college student e-cigarette users attending four geographically diverse, large U.S. public universities during October-December 2020 (N = 800). Multivariable logistic regression models explored associations between exclusive e-cigarette use and concurrent e-cigarette and cannabis use and COVID-19 symptoms, testing, and diagnosis. Models controlled for demographics, university site, and current use of combustible cigarettes, cigars, and smokeless tobacco.

Results

Over half of student e-cigarette users (52.0%) concurrently used cannabis. Compared to exclusive e-cigarette users, concurrent e-cigarette and cannabis users were 3.53 times more likely (95%CI = 1.96–6.36) to report COVID-19 symptoms, after adjusting for the covariates. Compared to infrequent exclusive e-cigarette users, infrequent concurrent users (AOR = 4.72, 95%CI = 1.31–17.00), intermediate concurrent users (AOR = 5.10, 95%CI = 1.37–18.97), and frequent concurrent users (AOR = 7.44, 95%CI = 2.06–26.84) were at increased odds of reporting COVID-19 symptoms. Compared to exclusive e-cigarette users, concurrent e-cigarette and cannabis users were 1.85 times more likely (95%CI = 1.15–2.98) to report a COVID-19 diagnosis. Intermediate concurrent users (AOR = 2.88, 95%CI = 1.13–7.35) and frequent concurrent users (AOR = 3.22, 95%CI = 1.32–7.87) were at increased odds of reporting a COVID-19 diagnosis, compared to infrequent exclusive e-cigarette users.

Conclusions

Concurrent use of e-cigarettes and cannabis may be an underlying risk factor of COVID-19 symptomatology and diagnosis, with more pronounced odds found among intermediate and frequent users. Results highlight the need to educate students about the impacts of e-cigarette and cannabis use on respiratory, immune, and overall health.

Awareness, knowledge and perception of electronic cigarettes among undergraduate students in Jazan Region, Saudi Arabia

The use of electronic cigarettes (e-cigarettes) has steadily grown over the past few years, rising in popularity amongst young adults, especially. Owing to the perception that e-cigarettes are less harmful than conventional cigarettes, some people have resorted to using them as a means of quitting cigarette smoking. This study aimed to assess the awareness, knowledge, perception and use of e-cigarettes among Jazan University students in Saudi Arabia. An observational cross-sectional study was conducted with 775 students. Using stratified random sampling to recruit study participants, the dataset tabling the use of e-cigarettes, as well as knowledge, perception and awareness was collected using a translated and culturally adapted structured Arabic questionnaire. Our results showed that 21.0% of the participants used e-cigarettes and 35.1% of them used them to quit smoking. E-cigarette use was mostly reported by students from the College of Medical Applied Sciences (31.7%). The overall knowledge score was 3.9, with a standard deviation of 1.3 for the score range from zero to seven. About half of the participants correctly identified e-cigarettes as not less addictive' than cigarettes. However, 70.2% of students failed to identify e-cigarettes as a source of second-hand exposure to nicotine. About two-thirds of the sample believed that e-cigarettes could adversely affect health. The perception of using e-cigarettes for smoking cessation was not significantly associated with e-cigarette use. In conclusion, the prevalence of e-cigarette use was similar to that reported in the literature. However, Jazan University students failed to identify the health risks associated with e-cigarette use. Therefore, a strategy to enhance students' awareness of the benefits and harms of e-cigarettes is needed.

Expectancies for and Pleasure from Simultaneous Alcohol and E-Cigarette Use among Young Adults

Background: Young adults' use of alcohol and e-cigarettes are of public health concern, as they report among the highest prevalence for use of both substances. Many young adults use alcohol and e-cigarettes simultaneously (i.e., at the same time with overlapping effects) despite heightened risk for adverse effects. Objectives: This study assessed simultaneous use expectancies and changes in pleasure from e-cigarettes as a function of alcohol consumption and simultaneous use frequency. Participants (N = 408; Mage = 23.64 years; 52.7% female) recruited through Amazon MTurk completed measures of alcohol and e-cigarette use, and expectancies, pleasure and frequency of simultaneous use. Results: Separate linear regression models revealed that alcohol consumption was positively associated with expectancies for simultaneous use of e-cigarettes/alcohol and pleasure from simultaneous use (ps ≤ .015). As individuals engaged in simultaneous use more frequently, they also reported greater expectancies for, and increased pleasure from, simultaneous use (ps < .001). Conclusions/Importance: Expectancies for simultaneous use may be greatest among young adults who consume more alcohol and engage in simultaneous use more frequently. Increased pleasure from e-cigarettes while drinking suggests that positive reinforcement may be implicated in simultaneous use patterns. Future research should examine the role of pleasure in simultaneous use trajectories.

Cannabis Legalization and Adolescent Use of Electronic Vapor Products, Cannabis, and Cigarettes

OBJECTIVES

Cannabis legalization may have unintended consequences, such as effects on prevalence of adolescent use of other substances. We hypothesize that in states that have legalized recreational cannabis (RCL states), electronic vapor product use ("vaping"), cannabis, and cigarette use among adolescents is more prevalent than in states that have only legalized medical cannabis (MCL states) and states that have neither legalized recreational nor medical cannabis (NL states).

METHODS

Data are from the Center for Disease Control's 2017 Youth Risk Behavior Surveillance Survey (n = 107,665), a nationally representative survey of US high school students. We categorized student responses by cannabis legalization status of the state in which they lived at time of survey, then tested associations between cannabis legalization status and adolescent vaping, cannabis, and cigarette use, using logistic regressions.

RESULTS

Students in RCL states were significantly more likely to report current vaping behaviors compared to NL students [odds ratios (OR's) 2.07-2.21]. Students in cannabis-legal states were significantly more likely to report ever or currently using cannabis compared to NL students (OR's 1.27-1.40). MCL students were significantly less likely to report current cigarette smoking (OR = 0.86) compared to NL students.

CONCLUSIONS

Adolescents in cannabis-legal states were more likely to report vaping and cannabis use compared to adolescents in NL states. Public health officials, policymakers, and clinicians should consider the associations between cannabis legalization and adolescent vaping, cigarette, and cannabis use patterns.

The Effects of E-Cigarette Use on Alcohol and Marijuana Abuse Symptoms in an Ethnically Diverse Sample of Young Adults

BACKGROUND

We examined e-cigarette use as a prospective predictor of alcohol and marijuana abuse symptoms in a sample consisting of Native Hawaiian and Other Pacific Islander (NHPI), Filipino, Asian (i.e., Japanese, Chinese, Korean), and White young adults. NHPI represent a highly vulnerable group with regard to substance use and are severely understudied.

METHODS

Data were collected from 1463 young adults (M age = 22.2, SD = 3.2; 59.5% women) enrolled across community colleges in Hawai'i at two time-points six months apart.

RESULTS

Higher frequency of e-cigarette use at baseline was predictive of higher alcohol (B = 0.06, SE = 0.02, p < 0.01) and marijuana (B = 0.06, SE = 0.02, p < 0.01) use problems at six-month follow up, adjusting for baseline cigarette smoking, problem alcohol/marijuana use, sensation seeking, and demographic variables. Ethnicity was found to significantly moderate the relationship between baseline e-cigarette use and problem marijuana use later, such that White and NHPI ethnicities were particularly vulnerable to the effects of e-cigarette use on problem marijuana use.

CONCLUSION

NHPI are often combined with Asians in national surveys, which obfuscates the higher risks faced by NHPI compared with groups that are routinely classified as Asians (e.g., Chinese, Japanese, Filipinos). The current research highlights the NHPI's vulnerability in terms of the effects of e-cigarette use on marijuana and alcohol abuse symptoms.

Electronic cigarette use among adolescents and young adults in Nigeria: Prevalence, associated factors and patterns of use

BACKGROUND

Electronic cigarettes (e-cigarettes) have emerged in the Nigerian market, and if used without supervision, may have damaging effects on the physical and mental health of users. Therefore, there is a need to determine the patterns of use, especially among adolescents and young adults. This study aims to assess the prevalence and factors associated with electronic cigarette use, as well as the relationship between their use and anxiety among adolescents and young adults in Lagos, Nigeria.

METHOD

An online cross-sectional study among participants aged between 15-35 years. The survey had three sections: sociodemographic information, the pattern of e-cigarette use, and a 7-item Generalized Anxiety Disorder (GAD-7) scale. Bivariate and multivariable logistic regression analysis was used to identify factors associated with e-cigarette use. P-values <0.05 were considered significant. Statistical analysis was done using STATA-15.0 software.

RESULTS

Data from a total of 949 respondents was analysed. Participants had a mean age of 23.36 years (±3.97) and were predominantly female (55.64%). The prevalence of e-cigarette ever-use was 7.9% (95% CI: 5.8,10.0). Older age and being male were independently associated with higher odds of e-cigarette use. After adjusting for age and sex, alcohol use (p<0.001), friend's use (p<0.001), and other tobacco product or substance use (p:0.05) remained significantly associated with higher odds of e-cigarette use. There was no association between anxiety levels and e-cigarette use.

CONCLUSION

These findings suggest a higher likelihood of e-cigarette use among alcohol consumers, poly-tobacco or substance users and individuals with friends who use e-cigarettes. Health providers and policy makers in Nigeria might consider preventive measures aimed at young adults with the identified risk factors, as well as close monitoring of trends in e-cigarette use in the coming years.

Prevalence of Flavored e-Cigarette Use Among Subpopulations of Adults in the United States

BACKGROUND

Evidence of US adult flavored e-cigarette use prevalence stratified by age, smoking status, and purpose for vaping (ie, quitting smoking, to use when or where smoking is not allowed) can inform policies that reduce the tobacco-related cancer burden.

METHODS

Current flavored e-cigarette use (use 1 or more nontobacco flavors) prevalence estimates were compared across subpopulation groups using 2-sided statistical significance tests in the July 2018 Current Population Survey Tobacco Use Supplement, a nationally representative cross-sectional adult survey (n = 46 759).

RESULTS

Current flavored e-cigarette use was reported by 1.6% (95% confidence interval [CI] = 1.47% to 1.69%) of all respondents. Among current vapers, the percentage of those who used flavored e-cigarettes was higher for adults aged 18-24 years (89.6%), 25-34 years (86.7%), and 35-44 years (76.0%) than for adults aged 45 years and older (60.4%, Ps < .001); was higher in never smokers (89.8%) than current (72.9%), long-term former (73.9%), and recent former (80.4%) smokers (Ps ≤ .009); was higher in smokers who reportedly did (78.9%) vs did not (71.1%) use e-cigarettes to vape where or when smoking is not allowed (P = .005); and did not differ between smokers who reportedly did (75.0%) vs did not (73.9%) vape to quit smoking (P = .71). Individuals who vaped to quit smoking and currently used flavored e-cigarettes constituted 0.9% (95% CI = 0.82% to 0.99%) of all adults (weighted N = 2 251 000, 95% CI = 2 046 000 to 2 476 000) and 57.2% of current flavored e-cigarette users.

CONCLUSIONS

Flavored e-cigarette use prevalence was low among US adults overall but common for current vapers. Flavored e-cigarette use was disproportionately prevalent among never smokers and other subpopulations that might experience harm from vaping.

Psychological and Demographic Predictors of Vaping and Vaping Susceptibility in Young Adults

Background

The use of electronic nicotine delivery systems (ENDS), also known as vaping, is becoming popular among young adults. Few studies have explored the psychological factors that predict ENDS use and susceptibility in young adults, in addition to known demographic predictors.

Method

In a cross-sectional survey design, 521 young adults (37% male), ages 18-25 from the United States, were recruited via Amazon's Mechanical Turk (MTurk) in 2019, to answer an online survey measuring demographic characteristics and psychological characteristics related to mental health and the Big Five personality traits. The survey also included measures of ENDS ever-use, current use, and susceptibility (never users open to trying ENDS), which we predicted from the demographic and psychological measures using independent and multiple binary logistic regression analyses.

Results

Of those surveyed (n = 521), 282 (54.1%) were ENDS ever-users, 93 (17.9%) were current ENDS users, and 61 (11.7%) were ENDS susceptible; 62 (11.9%) were current smokers. Demographically, young adults lower in adulthood socioeconomic-status (SES), not pursuing education further than high school, and current smokers were more likely to be ENDS users. Psychologically, young adults higher in anxiety and lower in conscientiousness more likely to have ever-used ENDS. Lower conscientiousness further predicted current ENDS use and ENDS susceptibility.

Conclusion

In this sample of MTurk workers, young adults with experience in vaping were more demographically and psychologically vulnerable than young adults with no experience in vaping. Young adults interested in vaping, but without prior experience, were less conscientious than their non-interested peers. Interventions to target vaping use should focus on economically disadvantaged young adults and those lower in conscientiousness.

Intention to lose weight and use of electronic cigarettes among adolescents

Electronic cigarette use among American adolescents is a major public health concern given the negative health consequences of nicotine in youth. Recent literature has shown that weight control may be one motivation for use in this population. This study examined associations between intention to lose weight and e-cigarette use among adolescents having overweight or obesity from an ethnically diverse sample of Texas youth by gender. We performed a cross-sectional analysis of a state representative sample of 9056 eighth and eleventh grade students from the 2015-2016 Texas School Physical Activity and Nutrition (Texas SPAN) study. Validated survey items assessed weight intentions and e-cigarette use. Staff collected anthropometric measures. Logistic regression analysis was conducted to assess the relationship between e-cigarette use and weight intentions with gender interaction, adjusting for grade, race/ethnicity, economic status, weight-behaviors and stratified by BMI class. More than half (50.9%) of the weighted sample were Hispanic and 12.5% were Non-Hispanic Black; 8.5% used e-cigarettes; and 50.0% intended to lose weight. Of the 40.2% of the sample having overweight or obesity, 82.9% intended to lose weight. Among respondents with obesity, use of e-cigarettes was significantly higher among males intending to lose weight than among females intending to lose weight (12% versus 6%, p = 0.007). These findings contrast with previous research suggesting that e-cigarette use in females is more likely to be motivated by an intent to lose weight. The ethnic diversity of the Texas SPAN population may explain this discrepancy.

From gateways to multilinear connections: A qualitative longitudinal investigation of the relationships between vaping and smoking among adolescent users

BACKGROUND

The international growth of e-cigarette use has been accompanied by a corresponding concern that e-cigarettes will act as a 'gateway' to smoking and the use of other drugs. Taking these concerns as our point of departure, we explore the relationships between vaping and smoking among a cohort of young people.

METHODS

Qualitative longitudinal methods with a diverse sample of 36 14-18-year olds from the UK city of Leicester. A total of 66 depth interviews conducted across two phases separated by 6-12 months. The interviews were recorded, transcribed verbatim and thematically analysed.

FINDINGS

We highlight a complex 'tangle' of connections between substances/risk behaviours recounted to us by our adolescent study participants, including multiple and multilinear relationships between vaping and smoking. These findings problematise some of the core axioms of the notion of gateways as an explanatory model of causality and sequential connection between smoking and vaping. They also throw into question gateway logics more fundamentally. While many of our study participants themselves consciously invoked ideas of 'gateway effects', the accounts they produced repeatedly disrupted the logics of connection (between e-cigarettes and smoking; one set of behaviours and another) presupposed in gateway theory and our own early lines of questioning. Accordingly, we explore how cultural understandings of gateway effects are invoked by users in accounting for their vaping and smoking behaviours, noting the potential influence of these ideas upon the very processes they are understood to apprehend.

CONCLUSION

Our findings suggest there is a case to be made to reinforce the distinctiveness of tobacco and e-cigarettes in the life-worlds of young people to avoid naturalising a 'gateway' logic of connection that might ultimately inform the associative logic of young users themselves, and potentially the development of their usage careers.

The Association Between Risk Behaviors and Vaping Among Youth in New Mexico

CONTEXT

Electronic-cigarette use, or vaping, among youth has increased substantially in recent years. Tobacco smoking shows a strong association with other risk behaviors, but the association between vaping and other risk behaviors has rarely been explored. We examine the relationship between youth vaping and substance use, risky driving behaviors, and lack of bicycle helmet use.

PROGRAM

Data from the 2015 and 2017 New Mexico Youth Risk and Resiliency Survey were analyzed to evaluate the association between the use of e-cigarettes and other youth risk behaviors. Study participants were high school students, grades 9 to 12. Logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals (CI).

EVALUATION

A majority of students reported ever using e-cigarettes (54%). In 2015, e-cigarette users were more likely than nonusers to be Hispanic (65% vs 54%, P ≤ .001) and 16 years of age or older (58% vs 42%, P = .018). We found strong, statistically significant associations between e-cigarette use and not wearing a bicycle helmet (OR = 2.62, 95% CI: 1.95-3.51), texting while driving (OR = 2.18, 95% CI: 1.79-2.66), driving after drinking (OR = 2.95, 95% CI: 1.61-5.40), current marijuana use (OR = 6.38, 95% CI: 4.65-8.76), current painkiller use (OR = 2.47, 95% CI: 1.63-3.77), and current heroin use (OR = 0.15, 95% CI: 0.06-0.33). Driving after drinking was not significantly associated with e-cigarette use in 2017.

DISCUSSION

E-cigarette use is associated with multiple other risk behaviors among youth. Further research should focus on environmental and policy efforts to reduce access to e-cigarettes by youth as well as interventions that address the underlying causes of the constellation of risk behaviors.

Adolescent nicotine and marijuana vaping activity and the use of other illicit substances

PURPOSE

Previous research links cigarette use and marijuana use in adolescence with the use of other illicit substances. Limited research, however, has explored whether vaping nicotine and marijuana, along with using these substances through multiple modes of delivery (traditional cigarette/marijuana use and vaping) is associated with the use of other illicit substances in adolescence.

PROCEDURES

This study addresses this gap in the literature by employing negative binomial regression to examine the relationships between three categories of nicotine users (traditional cigarettes only, nicotine vaping only, and dual mode nicotine use), three categories of marijuana users (traditional marijuana use only, marijuana vaping only, and dual mode marijuana use), and the use of other illicit substances in a sample of Florida middle school and high school students.

FINDINGS

Our findings reveal that nicotine vaping and dual mode use of both nicotine and marijuana are associated with the use of a greater variety of illicit substances compared to non-users.

CONCLUSIONS

In conclusion, our findings suggest that dual mode use of nicotine and marijuana are associated with greater likelihood of using other illicit substances. The implications of these findings for future research are discussed.

Predictors of Vaping Behavior Change in Young Adults Using the Transtheoretical Model: A Multi-Country Study

Electronic nicotine products remain popular among college students. These products contain heavy metals, carcinogens and the addictive substance nicotine. By understanding where students are in their behavior change can help to determine and focus messages and campaigns. The aim of this study was to assess predictors of the Transtheoretical model in college-aged vaping. This study consisted of an online/Ipad delivery of a voluntary survey to 1249 young adults/college students at 5 universities (International and within the U.S.). Data was analyzed using Stata. Regression analysis was performed to assess predictors of the stages in the Transtheoretical Model of behavior change. Our study found that women tended to be further along in the stages of change as compared to their male counterparts. Additionally, the older students were more likely to be in maintenance stage as compared to the younger students. The students who vaped longer tended to not have advance into any of the stages of change besides precontemplation. Understanding where students are in the stages of change can help to inform behavioral message campaigns enabling more focused targeting of messages and efforts to reduce consumption. Electronic nicotine products are highly prevalent on college campuses, both nationally and internationally. The nicotine is addictive and may result in less of a desire or ability to quit as young adults age.

The Future of Substance Abuse Now: Relationships among Adolescent Use of Vaping Devices, Marijuana, and Synthetic Cannabinoids

Background: Substances that can be vaped include nicotine, marijuana, cocaine, heroin, and a range of synthetic drugs called new psychoactive substances (NPS). Due to the rising popularity of vaping among adolescents, it is crucial to understand the relationships between vaping and illicit drug use. Objectives: This paper examined the prevalence and trends of using vaping devices, marijuana vaping, marijuana products, synthetic cannabinoids and mist contents among youth. Methods: The study utilized 5 sets of public cross-sectional national data from the "Monitoring the Future" surveys during 2014-2018. It employed logistic regression to analyze the data. Results: There was an increase from 10.5% in 2017 to 20.8% in 2018 for the past 30-day use of vaping devices among 12^th graders. Furthermore, there was an increase from 21.6% in 2017 to 34.5% in 2018 for the past 12-month use of marijuana via vaping device among 12^th-grade marijuana users. Additionally, there were significant associations between vaping device use and marijuana vaping, between vaping device use and marijuana use, between vaping device use and synthetic cannabinoids use, and between marijuana use and synthetic cannabinoids use from 2016 to 2018. Conclusions: Vaping emerged as another major route of marijuana administration among youth. Adolescent marijuana users had higher odds of using synthetic cannabinoids. This finding highlighted the importance of understanding what adolescent substance consumption pattern would be where marijuana was legalized. It also supported the hypothesis that vaping devices use correlates with, or is associated with, marijuana and synthetic cannabinoids use.

Substance Use among Exclusive Electronic Cigarette Users and Dual Combustible Cigarette Users: Extending Work to Adult Users

BACKGROUND

Electronic cigarettes (e-cigarettes) have become increasingly popular in recent years. Existing evidence indicates e-cigarettes used in isolation are less harmful than combustible cigarettes, yet emerging work has demonstrated that adults use e-cigarettes largely in combination with combustible cigarettes (i.e. dual use). Despite this data, little is understood about how exclusive and dual e-cigarette users may differ across behavioral outcomes, such as substance use dependence and behaviors among adults.

OBJECTIVES

Thus, the current project examined differences in e-cigarette dependence, problematic alcohol use, cannabis use, and nonmedical prescription opioid use (e.g. methadone and oxycodone) across both exclusive and dual e-cigarette adult users.

RESULTS

Participants included 531 (53.6% female; M_age = 35.29 years, SD = 10.44) adults with past-month e-cigarette use. Dual users reported greater e-cigarette dependence, alcohol use, current cannabis use, and endorsement of nonprescription opioid use. Conclusions/Importance: Importantly, this work suggests that adults who use both combustible and e-cigarettes may constitute a group more vulnerable to experiencing problematic substance use and more severe e-cigarette dependence than exclusive e-cigarette users.

A Comparison of Mental and Behavioral Health Risks Factors Associated With Current Dual Use of Electronic Cigarette and Conventional Tobacco Cigarettes With Exclusive Tobacco Cigarette Use and Nonuse Among Adults in the United States

BACKGROUND AND OBJECTIVES

While health risks associated with tobacco cigarette use are well-known, additional risks of dual use are poorly understood. This study compared mental and behavioral health risk factors associated with the current dual use of e-cigarettes and conventional tobacco cigarettes with current exclusive users of tobacco cigarettes and nonusers of either e-cigarettes or tobacco cigarettes.

METHODS

Data from the 2016 National Behavioral Risk Factor Surveillance System (BRFSS) were analyzed (N = 277,034). Current dual use was defined as the current use of tobacco cigarettes and the use of e-cigarettes, everyday or some days. Multivariate logistic regression analysis was used to assess associations between dual use and mental and behavioral health risks compared with exclusive tobacco cigarette users and nonusers.

RESULTS

Compared with nonusers, current dual use was associated with increased odds of having more than 14 days of self-reported poor physical health (adjusted odd ratio [AOR], 1.9; P < .01), more than 14 days of self-reported poor mental health (AOR, 1.8; P < .01), a diagnosis of depression (AOR, 2.2; P < .001); using smokeless tobacco products (AOR, 1.6; P < .05), alcohol use (AOR, 1.6; P < .01), and marijuana use (AOR, 8.3; P < .001) than current exclusive users of tobacco cigarettes.

CONCLUSIONS AND SCIENTIFIC SIGNIFICANCE

The concurrent use of e-cigarettes and tobacco cigarettes is associated with increased odds of having behavioral and mental health problems. These findings may be indicative of increased health risks associated with dual use, compared with the exclusive use of tobacco cigarettes, and have important implications for public health interventions and policies aimed at mitigating health risk behaviors. (Am J Addict 2020;00:00-00).

Reviewing the oral carcinogenic potential of E-cigarettes using the Bradford Hill criteria of causation

The past decade has seen a surge in the use of e-cigarettes, which has prompted the medical community to assess any associated potential health hazards. A major concern was the risk of cancer. Chemical analysis of e-cigarettes has shown the presence of volatile organic compounds with the potential for carcinogenicity. Comparative toxicology analysis has shown e-cigarette to have relatively lower dosages of toxins than conventional combustible cigarettes. Based on comparative analysis, e-cigarettes have been increasingly advocated as a safe alternative to conventional cigarettes. It is vital to recognize that presence of relatively lower toxin level does not preclude carcinogenic potential. The nicotine present in the e-cigarette was presumed to be the major cytotoxic agents, thus nicotine-free e-cigarette was considered as inert. On the contrary, experimental studies on oral cell lines have shown DNA strand breaks on exposure to e-cigarette vapors with or without nicotine. In addition, dysregulations of genes associated with carcinogenic pathways have also been demonstrated in oral tissues exposed to e-cigarette vapors. Despite alarming molecular data, the oral carcinogenic potential of e-cigarette remains unclear, which can be attributed to the lack of long-term prospective and large-scale case-control studies. As e-cigarette users often have other well-established risk factors (conventional cigarette smoking, alcohol, etc.) as associated habits, it is difficult to assess e-cigarette as an independent risk factor for oral cancer. Thus, the present manuscript aims to review the published literature using the Brad Ford Hill criteria of causation to determine the oral carcinogenic potential of e-cigarettes.

Is E-cigarette use a gateway to marijuana use? Longitudinal examinations of initiation, reinitiation, and persistence of e-cigarette and marijuana use

BACKGROUND

Concerns have been raised regarding e-cigarette use as a potential stepping-stone to marijuana use. Based on Kandel's gateway hypothesis, this study investigated if e-cigarette use could lead to marijuana use by testing two hypotheses with a longitudinal national U.S. adult sample, including (1) primary hypothesis: e-cigarette use is a gateway to marijuana use; and (2) falsification hypothesis: marijuana use is not a gateway to e-cigarette use.

METHODS

Adults were extracted from the Population Assessment of Tobacco and Health Study Waves 1-3 (2013-2016). For primary hypotheses, based on baseline e-cigarette use statuses, three study groups were defined, and three logistic regressions were conducted to examine associations between baseline e-cigarette use and follow-up marijuana use initiation, reinitiation, and persistence, respectively. Similarly, for falsification hypotheses, three additional study groups were defined, and three logistic regressions were conducted to examine associations between baseline marijuana use and follow-up e-cigarette use behaviors.

RESULTS

Baseline e-cigarette use was associated with marijuana use initiation and reinitiation (ORs = 2.08, 1.37, respectively, both ps < .05) but not persistence at follow-up. Additionally, baseline marijuana use was associated with only e-cigarette use initiation (OR = 2.23, p < .01) but not reinitiation or persistence at follow-up.

CONCLUSIONS

Findings partially support the gateway hypothesis that e-cigarette use could be a steppingstone to marijuana use reinitiation among the U.S. adults. The mechanisms and behavioral characteristics, such as etiological and psychosocial factors, that may pertain to the progression from e-cigarette use to reinitiation of other substance use should be further investigated to inform effective behavioral, educational, and policy interventions.

Cigarette Smoking and E-Cigarette Use by Pharmacy Students in Serbia

The purpose of this study was to assess the use of e-cigarettes among pharmacy students. In 2016, we conducted a cross-sectional study among pharmacy students enrolled at the University of Kragujevac (Serbia). Overall, 47.0% of pharmacy students reported that they ever smoked cigarettes; 29.7% were former and 17.3% were current smokers. The overall prevalence of e-cigarette use was 9.9%. The final year pharmacy students significantly more frequently smoked tobacco cigarettes (p = .001) and used e-cigarettes (p = .009) compared to younger students. Also, alcohol use was positively related to ever smoking tobacco cigarettes (adjusted OR = 4.57, 95% CI = 2.80-7.43; p < .001) and to ever use of e-cigarettes (adjusted OR = 5.58, 95% CI = 1.58-19.71; p = .008). The pharmacy students who ever used e-cigarettes more frequently reported a history of self-funded study financing (adjusted OR = 14.68, 95% CI = 2.42-89.17; p = .004) and use of psychoactive substances (adjusted OR = 13.63, 95% CI = 2.52-73.69; p = .002). In pharmacy students, a higher overall grade was related to a significantly less frequent ever use of tobacco cigarettes (adjusted OR = 0.43, 95% CI = 0.22-0.84, p = .015). This paper highlights the need for a more effective tobacco control among pharmacy students in Serbia in order to reduce smoking prevalence.

Detrimental Effects of a Retrieval-Extinction Procedure on Nicotine Seeking, but Not Cocaine Seeking

Retrieval-extinction memory reactivation procedures have been used to prevent the return of learned fear and drug seeking in preclinical models. These procedures first reactivate the original memory with a brief cue exposure (i.e., retrieval) session, and then disrupt memory reconsolidation by conducting extinction training within the reconsolidation window. The original memory is thought to be updated with the new information conveyed by extinction learning, resulting in a persistent therapeutic effect beyond that observed with extinction training alone (i.e., no retrieval). Here, we attempted to replicate the therapeutic effects on cocaine seeking reported by Xue et al. (2012), and extend these findings to nicotine seeking. Rats self-administered either cocaine or nicotine with contingent cues for weeks, and were then divided into two groups. The retrieval group underwent a 10-min retrieval session wherein drug cues were available, but drug was not. Ten minutes later, they were allowed to continue cue extinction training for an additional 60 min. The no retrieval group underwent a contiguous 70-min cue extinction session. These procedures continued for weeks, followed by a test for spontaneous recovery of drug seeking. No group differences were observed on any measure of cocaine seeking, although both groups exhibited extinction and spontaneous recovery. By contrast, for nicotine seeking, the retrieval group exhibited resistance to extinction, an effect that persisted on the spontaneous recovery test. These findings underscore the importance of drug type in the outcome of retrieval-extinction procedures and moreover indicate that retrieval-extinction procedures can be detrimental to nicotine seeking.

The association between alcohol, marijuana, illegal drug use and current use of E-cigarette among youth and young adults in Canada: results from Canadian Tobacco, Alcohol and Drugs Survey 2017

Background

E-cigarettes have grown in popularity around the world since 2003. Although marketed as a smoking cessation tool, e-cigarettes can lead to tobacco cigarette smoking in youth. In Canada, among all age groups, youth and young adults have the highest prevalence of e-cigarette use. The objective of this study was to assess the factors associated with e-cigarette use among youth and young adults in Canada, and to specifically examine the association between alcohol, marijuana and illicit drug use.

Methods

Data from the 2017 Canadian Tobacco, Alcohol and Drugs Survey were used. The sample was restricted to those aged 15–24 years (n = 10,322), and main outcome defined as ‘E-cigarette use in the past 30-days’. Multivariable logistic regression was performed to assess the association between the main outcome and substance use variables (illicit drug, marijuana and alcohol use), tobacco exposure variables, and demographic and health-related factors.

Results

6.2% Canadians aged 15–24 reported using e-cigarettes in the past 30-days, while 23.9% reported having ever tried e-cigarettes. Twenty-three percent of the past 30-day users reported using e-cigarettes every day and 72.5% of the past 30-day users reported having nicotine in their last e-cigarette. Additionally, youth aged 15–17 were 4.95 times more likely to be e-cigarette users as compared to those aged 22–24 (OR: 4.95, 95% CI: 3.1–7.9). Moreover, e-cigarette use was significantly associated with marijuana use (OR:4.17, 95% CI: 2.6–6.7) and alcohol use (OR: 5.08, 95% CI: 2.9–9.0), and approached significance with illicit drug use (OR: 1.68, 95% CI: 1.0–2.9). Furthermore, being a current smoker (OR: 2.93, 95% CI: 1.8–4.7) and male (OR: 2.28, 95% CI: 1.5–3.4) was significantly associated with the outcome.

Conclusion

This study is nationally representative and provides insight into e-cigarette use among youth and young adults aged 15–24 years. Given that e-cigarettes can be used as illicit drug delivery systems, more studies are needed to understand how Canadian youth and young adults are using e-cigarettes. Stricter restrictions on public e-cigarette smoking, and awareness campaigns informing youth of risks of e-cigarette smoking should be implemented.

New and Emerging Tobacco Products and the Nicotine Endgame: The Role of Robust Regulation and Comprehensive Tobacco Control and Prevention: A Presidential Advisory From the American Heart Association

The advent of new tobacco products such as electronic cigarettes and the dramatic rise in their use, especially by adolescents and young adults, are significant public health concerns. Electronic cigarettes have become the most popular tobacco products for youth and adolescents in the United States and are attracting youth to new avenues for nicotine addiction. Although these products may have benefit by helping some smokers quit or to move to a less harmful product, the long-term health effects of these products and the net public health effect associated with their use remain unclear and widely debated. There is increasing concern that the use of newer tobacco products may catalyze transition to the use of other tobacco products or recreational drugs, particularly in young adults. Therefore, there is urgent need for robust US Food and Drug Administration regulation of all tobacco products to avoid the significant economic and population health consequences of continued tobacco use. Although the American Heart Association acknowledges that the ultimate endgame would be an end to all tobacco and nicotine addiction in the United States, it supports first minimizing the use of all combustible tobacco products while ensuring that other products do not addict the next generation of youth and adolescents. The endgame strategy needs to be coordinated with the long-standing, evidence-based tobacco control strategies that have significantly reduced tobacco use and initiation in the United States.

Measuring characteristics of e-cigarette consumption among college students

Objective: E-cigarette use among college students has increased drastically in recent years. This study aims to inform development of a comprehensive measure of e-cigarette consumption for this population. Participants and Methods: This mixed-method study collected both quantitative and qualitative data from a sample of 43 experienced e-cigarette users from two college campuses, using a self-reported questionnaire and a semi-structured interview, in March-September of 2017. Results: College student users found some of the consumption questions in national surveys difficult to answer. Switching nicotine levels, mixing flavors, co-using with alcohol and marijuana, using with others who were vaping or drinking, and vaping in a car or indoor space were all common. The participants defined "regular user" based on ownership of a device rather than on quantity/frequency. Conclusions: A comprehensive e-cigarette consumption measure should cover the complex characteristics that are potentially associated with negative health consequences such as flavorings, co-use and social contexts.

E-cigarettes, alcohol use, and mental health: Use and perceptions of e-cigarettes among college students, by alcohol use and mental health status

INTRODUCTION

Electronic cigarettes (e-cigarettes) are popular among college students, who display risky alcohol use patterns. However, little is known about patterns of co-use of e-cigarettes and alcohol. Further, relationships between e-cigarette use and mental illness among college students are unclear.

METHODS

College student participants (N = 631) at a northeastern U.S. university were invited via email to participate in a survey about e-cigarettes and alcohol use. Mental health was self-reported diagnosis of psychiatric (depression, bipolar disorder, schizophrenia, PTSD, anxiety disorder, personality disorder), and substance (alcohol and other drug) use disorders. Current use of e-cigarette, combustible cigarette, and other tobacco products were assessed via self-reported past 30-day use frequency. Alcohol consumption was assessed via number of self-reported standard alcoholic beverages consumed during a typical drinking episode. Participants also reported regarding co-use of alcohol, e-cigarettes and/or combustible cigarettes. Participants were categorized as non-drinkers, moderate drinkers or binge drinkers, and associations between e-cigarette use, drinking patterns and mental health diagnoses were examined.

RESULTS

E-cigarette use was associated with drinking alcohol χ2 = 18.62, p < .001, and binge drinking (vs. moderate drinking) χ2 = 12.20, p < .001. Students who had tried e-cigarettes reported drinking more alcohol per episode (χ2 = 15.94, p < .001). E-cigarette use was more prevalent among those with psychiatric and substance use disorders χ2 = 11.65, p < .001.

CONCLUSIONS

Drinking college students (especially binge drinkers) and those with mental illness may have heightened risks for e-cigarette use. More research is needed to elucidate relationships between risky alcohol and/or nicotine use and mental illness, and to guide appropriate prevention and intervention efforts for vulnerable college students.