Latent Class Analysis to Examine Patterns of Smoking and Other Tobacco Products in Young Adult Bar Patrons

Sociocultural, Behavioral, and Physical Correlates of Excessive Social Media Use, Addiction, and Motivation Toward Reduction in a Hispanic College Student Sample

Social media use has been associated with adverse health consequences. However, there is limited research assessing correlates of social media use, addiction, failure to control use, and motivation to reduce use in a Hispanic sample. This study aimed to fill this gap by assessing factors within the National Institute of Minority Health and Health Disparities Research Framework. Participants were Hispanic college students (n = 273) residing either in the United States or Mexico who completed an online survey. Univariate analyses determined independent variables to be assessed in four linear regression models. Results indicated that weekly social media use was negatively associated with sex, attentional impulsivity, and social comparison and positively associated with social media craving (SMC). Social media addiction was positively associated with frequency of posting in Spanish, Fear of Missing Out, SMC, and home restriction of social media use. Social media self-control failure was negatively associated with acculturative language and positively associated with frequency of posting in English, attentional impulsiveness, SMC, and home restriction of social media use. Motivation to reduce social media use was positively associated with residing in the United States. Clinical implications include targeting key factors through tailored interventions aimed at promoting adaptive social media use patterns.

Tobacco and Nicotine Product Use Transitions by Race and Ethnicity: Results from a Latent Transition Analysis Using Data from the Truth Longitudinal Cohort (2020-2022)

OBJECTIVE

To examine use and frequency patterns across e-cigarettes, cigarettes, and little cigars, cigars, and cigarillos (LCCs) over time and determine whether patterns differ by race and ethnicity.

METHODS

Data was obtained from the Truth Longitudinal Cohort of youth and young adults between September 2020 and June 2022. Latent class and transition analyses were used to classify participants (N = 4448) into subgroups, based on frequency of tobacco product use in the past 30 days, and to estimate the probability of use pattern transitions by race and ethnicity, adjusted for the effects of gender, financial situation, parental education, household tobacco use, and sensation seeking.

RESULTS

Four latent classes were identified: former/noncurrent users, predominantly frequent to daily (FTD) e-cigarette users, predominantly FTD e-cigarette and LCC users, and predominantly FTD cigarette with polytobacco users. Use trajectories differed by race and ethnicity. A lower proportion of those who identified as non-Hispanic Black (60.0%) remained e-cigarette and LCC users, relative to those who identified as non-Hispanic White (86.0%), Hispanic or Latino (86.0%), and another race and ethnicity (79.0%). A lower proportion of those who identified as Hispanic or Latino (54.0%) and another race and ethnicity (59.9%) remained cigarette with polytobacco users, relative to those who identified as non-Hispanic White (76.0%) and non-Hispanic Black (72.0%). A greater proportion of non-Hispanic Black respondents transitioned from e-cigarette and LCC user to former/noncurrent user (40.0%) and polytobacco user to e-cigarette and LCC user (11.0%), relative to other racial/ethnic groups.

CONCLUSION

More research is needed to determine why tobacco use trajectories differ by race and ethnicity. Such research will be important in informing comprehensive approaches that promote evidence-based prevention policies and programs.

Longitudinal Assessment of Association Between Tobacco Use and Tobacco Dependence Among Adults: Latent Class Analysis of the Population Assessment of Tobacco and Health Study Waves 1-4

INTRODUCTION

With increasing tobacco product varieties, understanding tobacco use (TU) profiles and their associations with tobacco dependence (TD) has also become increasingly challenging.

AIMS AND METHODS

We aimed to identify TU profiles and their associations with TD over time, and to identify subgroups with high risk of TD. We included 3463 adult recent tobacco users who had complete TU and TD data across waves 1-4 of the Population Assessment of Tobacco and Health (PATH) study. We used a composite index of TD and a summed TD score from an established 16-item TD measure. We applied a latent class analysis to identify TU profiles based on participants' usage of eight common tobacco product groups at each survey wave and to check the stability of the TU profiles over time. We then used generalized estimating equations regressions to evaluate the longitudinal TU-TD association, adjusting for potential confounders.

RESULTS

We identified three distinct TU profiles that remained consistent across four survey waves: Dominant cigarette users (62%-68%), poly users with high propensity of using traditional cigarettes, e-cigarettes, and cigars (24%-31%), and dominant smokeless product users (7%-9%). Covariate-adjusted models showed that TD was significantly lower among the poly users and the dominant smokeless users, compared to that among the dominant cigarette users.

CONCLUSIONS

Both TU profiles and their associations with TD were stable over time at the population level. Poly users and smokeless product users were consistently associated with lower TD than cigarette-dominant users, suggesting the need for tailored tobacco cessation interventions for users with different TU profiles.

IMPLICATIONS

The finding of consistent TU profiles across four survey waves extends the current literature in capturing TU patterns in an evolving tobacco product landscape. The finding of the overall higher level of TD among the cigarette-dominant users compared to the other TU latent profiles (the Cig+eCig+Cigar dominant poly users and the dominant smokeless product users) can help identify high-risk groups for potential interventions. Our application of innovative statistical methods to high-quality longitudinal data from the PATH study helps improve the understanding of the dynamic TU-TD relationship over time.

Latent Classes of Tobacco and Cannabis Use among Youth and Young Adults in the United States

Background: Research characterizing patterns of tobacco and cannabis use by product type and route of administration among youth and young adults (YAs) is limited. Methods: We conducted latent class analysis of tobacco and cannabis use (i.e., cigarettes, electronic nicotine delivery systems (ENDS), cigars, blunts, cannabis vaping, and other cannabis use (without blunting/vaping)) among youth (ages 15-17) and YAs (ages 18-24) who used at least one product in the past 30 days, using data from the Population Assessment of Tobacco and Health Study (Wave 4, 2016-2017). We used multinomial logistic regression models to examine associations between sociodemographic characteristics and use classes. Results: The latent use classes for youth included cigarettes (2.5%), ENDS (2.6%), blunts (2.5%), other cannabis (6.3%), ENDS + cannabis vaping (2.7%), and cigarettes + cigars + other cannabis (1.5%), while the latent use classes for YAs included cigarettes (11.7%), ENDS (3.9%), blunts (5.3%), other cannabis (7.0%), cigarettes + cigars (8.2%), and cigarettes + ENDS + cannabis vaping (4.9%). We compared use classes to never/former use for youth (82.0%) and YAs (59.0%) and found that they differed by each sociodemographic characteristic. For example, non-Hispanic Black YAs had higher odds of cigarettes + cigar use compared to non-Hispanic White YAs, whereas racial/ethnic minority youth and YAs had lower odds of other dual/poly use groups compared to their non-Hispanic White counterparts. Conclusions: We observed differences in use classes by sociodemographic characteristics for youth and YAs. Health professionals must consider tobacco and cannabis use patterns when implementing prevention and cessation interventions.

Patterns of tobacco or nicotine-based product use and their quitting behaviour among adults in India: a latent class analysis

OBJECTIVES

The aims of the study were to identify latent classes of adult tobacco or nicotine-based product users in India, compare their sociodemographic distribution and quitting behaviour and explore the association of quitting behaviour and time to first tobacco use with class membership.

STUDY DESIGN

This was a nationally representative cross-sectional survey.

METHODS

Data from the Global Adult Tobacco Survey 2016-2017 in India, which covered adults aged >15 years, were analysed. Latent class analysis was used to examine patterns of tobacco or nicotine-based product use (cigarette, bidi, cigar, e-cigarette, chewable tobacco and snuff) among current tobacco users. Classes were compared across sociodemographic and tobacco use-related characteristics. Various model fit statistics (Akaike, Bayesian and Sample Size-Adjusted Bayesian Information Criteria, Likelihood Ratio Tests and Entropy) and meaningfulness of the classes were used to select the number of latent classes.

RESULTS

Of 21,857 current tobacco users, five latent classes were extracted: 'poly-tobacco use' (103, 0.5%), 'oral chewable products predominantly' (11,306, 51.7%), 'bidi predominantly' (4965, 22.7%), 'cigarette predominantly' (5318, 24.3%) and 'snuff and chewable products' (165, 0.8%). Significant differences between classes emerged on sociodemographics (age, sex, residence, education, wealth quintile, region). 'Bidi predominantly' class was associated with higher likelihood of quit attempts. Compared with 'cigarette predominantly' class, other classes were significantly associated with time to first tobacco use.

CONCLUSION

We found that people in India could be grouped into five classes based on their tobacco or nicotine-based product use pattern. It may be efficient to tailor messages to different latent classes and address the distinct profiles of these groups of tobacco product users.

Non-daily Cigarette Smoking: Stability and Transition to Abstinence in Young Adults

INTRODUCTION

There is increasing recognition that non-daily cigarette smoking is common in early adulthood but less is known about its stability over time, or what influences transitions to heavier or nonsmoking. We examined the stability of non-daily smoking in a sample of young adults, and tested whether social and cognitive factors predicted transitions to other smoking patterns over time.

AIMS AND METHODS

Participants were 579 young adults (18-24 years old at enrollment, 52% male) who were non-daily and never-daily cigarette smokers and California residents. Participants completed 13 waves of assessment over 3 years. We used descriptive statistics to evaluate the frequency of consistent abstinence, defined as no cigarette use at two consecutive waves and no cigarette use at any subsequent waves. Cox and logistic regression were used to test predictors of consistent abstinence.

RESULTS

We found that 55% of participants smoked intermittently throughout the study, while 43% were consistently abstinent by the end of the study; few transitioned to daily smoking. Stopping smoking was associated with having fewer smoking friends, smoking less in social situations, having lower positive reinforcement expectancies for smoking, and having stronger intent to quit. Post hoc analyses indicated those who stopped smoking tended to report reductions in positive reinforcement expectancies and increased intent to quit in the 6 months before stopping.

CONCLUSIONS

Findings suggest a substantial minority of young adult non-daily smokers may stop on their own, but that the majority continue smoking and may require intervention. Interventions for this population should address social motives and reinforcement expectancies.

IMPLICATIONS

The majority of young adults who are non-daily cigarette smokers appear to maintain this habit over an extended period and may require intervention. Interventions that focus on reducing expectancies for positive effects of and social motives for cigarette use and on increasing intent to quit smoking may be most effective.

Transitions in tobacco use profiles among adolescents: Results from the Population Assessment of Tobacco and Health (PATH) study waves 3 and 4

INTRODUCTION

Despite increases in adolescents' polytobacco use, little work has utilized recent national data to examine transitions in polytobacco use over time or predictors of such transitions.

METHODS

Data derived from the Population Assessment of Tobacco and Health (PATH) study. Participants used at least one tobacco product (cigarettes, electronic cigarettes [ECIGs], traditional cigars, cigarillos, filtered cigars, snus, smokeless tobacco [SLT], hookah) at Wave 3 (W3; 2015-2016) or 4 (W4; 2016-2018) and had Wave 1 (W1) data (N = 1072; Mage= 13.71, SD =1.71, 46.4% female; 56.6% White, 23.2% Hispanic). Latent transition analysis (LTA) examined probabilities of transitioning between classes across waves and sociodemographic correlates of transitions.

RESULTS

Five latent classes were identified: Low Users (n = 372, 34.7% W3; n = 249, 23.3% W4), ECIG Users (n = 256, 23.8% W3; n = 286, 26.7% W4), Cigarette Users (n = 215, 20.1% W3; n = 293, 27.3% W4), SLT Users (n = 91, 8.5% W3; n = 92, 8.6% W4), and Polytobacco Users (n = 138, 12.9% W3; n = 152, 14.1% W4). Cigarette Users and SLT Users displayed the highest probabilities for class stability. Low Users were most likely to transition to ECIG Users or Cigarette Users, whereas Polytobacco Users were most likely to transition to Low Users. ECIG Users were likely to transition to Low Users or Cigarette Users. Older and White adolescents were more likely to display riskier transitions.

CONCLUSIONS

Although Cigarette Users and SLT Users remained largely stable in membership, findings demonstrate greater movement across polytobacco use classes relative to previous research and suggest that ECIGs may be the most common entry point to tobacco use.

Adolescent E-cigarette Users at Highest Risk of Cigarette Smoking Intention

Objectives: Adolescent e-cigarette users are at risk of developing smoking intention, an established predictor of conventional cigarette smoking. In this study, we identify subgroups of adolescent e-cigarette users who are most likely to intend to smoke conventional cigarettes. Methods: Cross-sectional data on 1357 8th and 10th grade e-cigarette users who had never smoked conventional cigarettes were obtained from 2014-2017 Monitoring the Future Surveys. We conducted latent class analysis to identify subgroups of adolescent e-cigarette users; through latent class regression analysis, we examined the association between subgroup membership and smoking intention. Results: We identified 3 subgroups of adolescent e-cigarette users: socially-protected (56.6%), peer-driven (29.8%), and market-vulnerable (13.6%). The peer-driven class reported the highest number of peers who smoke and the lowest proportion of friends who strongly disapproved of daily cigarette smoking. They were significantly more likely than the socially-protected and market-vulnerable classes to have smoking intention (AOR=2.46; 95% CI 1.84-3.28, and AOR=2.29; 95% CI 1.48-3.53, respectively). Conclusion: Our findings provide insights on the constellation of risk and protective factors that contribute to smoking intention among adolescent e-cigarette users. It highlights peer influence as an important area of emphasis for adolescent smoking prevention programs.

Tobacco Use Trajectories in Young Adults: Analyses of Predictors Across Systems Levels

INTRODUCTION

Research is needed to examine trajectories of tobacco use beyond cigarette smoking, particularly during emerging middle young adulthood, and to identify distinct multilevel influences of use trajectories.

AIMS AND METHODS

We examined (1) tobacco use trajectories over a 2-year period among 2592 young adult college students in a longitudinal cohort study and (2) predictors of these trajectories using variables from a socioecological framework, including intrapersonal-level factors (eg, sociodemographics, psychosocial factors [eg, adverse childhood experiences, depressive symptoms, and attention-deficit hyperactivity disorder symptoms], early-onset substance use), interpersonal factors (eg, social support, parental substance use), and community-level factors (eg, college type, rural vs. urban).

RESULTS

About 64.5% were female and 65.0% were white. From age 18 to 26, 27%-31% of participants reported past 30-day use of any tobacco product. We identified four trajectory classes: Abstainers/Dabblers who never or infrequently used (89.2%); Adult users who began using frequently around age 20 and continued thereafter (5.9%); College Smokers who began using before 19 but ceased use around 25 (2.5%); and Teenage users who used during their teenage years but ceased use by 22 (1.9%). Multinomial regression showed that, compared to Abstainers/Dabblers, significant predictors (p < .05) of being (1) Adult users included being male, earlier onset marijuana use, attending public universities or technical colleges (vs. private universities), and living in urban areas; (2) College users included being male, earlier onset marijuana use, and parental alcohol or marijuana use; and (3) Teenage users included only earlier onset marijuana use.

CONCLUSION

Distinct prevention and intervention efforts may be needed to address the trajectories identified.

IMPLICATIONS

Among young adult college students, the largest proportion of tobacco users demonstrate the risk of continued and/or progression of tobacco use beyond college. In addition, specific factors, particularly sex, earlier onset marijuana use, parental use of alcohol and marijuana, and contextual factors such as college setting (type of school, rural vs. urban) may influence tobacco use outcomes. As such, prevention and cessation intervention strategies are needed to address multilevel influences.

Personality and impulsivity as predictors of tobacco use among emerging adults: A latent class analysis

The tobacco industry markets their products toward emerging adults (18-29), with the goal of increasing use among this age group. To inform prevention efforts, researchers are investigating how specific demographic and psychological traits may predict tobacco initiation and continuation. Participants were 578 incoming university freshmen from the Appalachian region. Participants provided information on demographics, personality traits, impulsivity characteristics, lifetime use of cigarettes and electronic cigarettes (ECIGs), and current use of cigarettes, ECIGs, small cigars/cigarillos, large cigars, smokeless tobacco, and waterpipe. Latent class analysis identified tobacco-use classes and regressions identified psychological predictors of class membership. Participants were Nonusers, Experimenters, and Polytobacco Users. Lower agreeableness and conscientiousness as well as higher extraversion and neuroticism were associated with being Experimenters or Polytobacco Users. Lower impulsivity was associated with being Nonusers. Distinct types of emerging adults belong to each tobacco use class, suggesting that individual differences be incorporated in prevention efforts.

Poly-Tobacco Use among Young Adult Waterpipe Smokers: Insights from University Students in Three Eastern Mediterranean Countries

INTRODUCTION

There is a tendency of waterpipe smokers to advance their practice toward concurrent use (poly-tobacco use) of other tobacco products and nicotine delivery systems. This study investigated poly-tobacco use among waterpipe smokers, and its effect on their quit intention.

METHODS

Descriptive cross-sectional design was utilized to recruit a convenience sample of university students who used waterpipe in three East Mediterranean countries. Using an internet-based survey, data were collected regarding participants' demographics, use of alternative tobacco products and nicotine delivery systems, and waterpipe quitting profile. Results: A total of 2290 students agreed to participate, among which 1116 (45.3%) reported using at least one tobacco product beside waterpipe. Poly-tobacco use was highest (61.1%) in Egypt, followed by Jordan (45.1%) and Palestine (33.1%). Across countries, cigarettes were the most common product (45.2%, n = 924) followed by cigar (18.6%, n = 374) and e-shisha (17.5%, n = 353). Conversely, the least reported product was smokeless tobacco (7.5%, n = 151) preceded by regular pipe (9.5%, n = 193). Participants who were males (OR = 2.83, 95% CI: 2.18-3.65), older (22-29 years) (OR = 1.15, 95% CI: 1.09-1.22), unemployed (OR = 1.58, 95% CI: 1.22-2.04), and those who initiated waterpipe at a younger age (OR = 0.87, 95% CI: 0.87-0.91) had higher odds of being poly-smokers. Poly-tobacco users were significantly more resistant to quit waterpipe. Conclusion: This study demonstrates poly-tobacco use as a rising phenomenon among waterpipe smokers and highlights the necessity for initiating advanced interventions to help waterpipe poly-tobacco users quit this dangerous type of addiction. Various country-specific programs are needed considering the various products used by the users.

Patterns of alternative tobacco product use among youth experiencing homelessness

INTRODUCTION

Identifying distinct patterns of tobacco product use can inform efforts to reduce poly-tobacco use among young people, but little is known regarding patterns of use among youth experiencing homelessness. This study identified patterns of using tobacco/nicotine products among youth experiencing homelessness, and assessed whether certain subgroups of youth were more likely than others to engage in specific patterns of use.

METHODS

Data were collected from a probability sample of 469 homeless youth who used tobacco in the past month, recruited from 25 service and street sites in Los Angeles County. Participants reported on lifetime and past month use of natural cigarettes, cigars, little cigars/cigarillos, electronic nicotine delivery systems, hookah, and chewing tobacco. Latent class analysis was used to identify patterns of tobacco product use.

RESULTS

We identified four main classes of use: traditional cigarettes smokers (34.7% of the sample), poly-tobacco experimenters (24.9%), current users of combustible products (natural cigarettes, cigars, little cigars/cigarillos; 27.1%), and current poly-tobacco users (13.1%). Youth who were male, slept outdoors, and screened positive for substance abuse disorder were more than twice as likely as their counterparts to be current poly-tobacco users relative to traditional cigarettes smokers.

CONCLUSIONS

Rates of poly-tobacco experimentation and current use among youth experiencing homelessness are high. This suggests that efforts to reduce the use of tobacco products in this population should focus on the combined use of these products, and further, that users with the greatest poly-use may have competing unmet needs such as substance use disorders and more severe homelessness.

Social media for tobacco smoking cessation intervention: a review of the literature

PURPOSE OF REVIEW

Social media platforms have the potential to reach large audiences and deliver intervention content in an interactive format. Yet, little is known about the efficacy of social media for smoking cessation treatment or which specific features best promote participant engagement and behavior change. This article seeks to evaluate the current literature on the use of social media interventions to support smoking cessation.

RECENT FINDINGS

Findings suggest that social media interventions are feasible and can be utilized effectively for smoking cessation treatment. Greater participant engagement with intervention content appears to be associated with positive changes in smoking behaviors in most, but not all studies reviewed.

SUMMARY

Smoking cessation interventions on social media hold promise to help smokers quit. Future randomized trials with longer follow-up intervals are needed to expand the current evidence base, as are studies that systematically investigate strategies to improve participant engagement with interventions.