Suchergebnisse

This study describes cigarette smoking trajectories, the influence of social smoker self-identification (SSID), and correlates of these trajectories in two cohorts of U.S. young adults: a sample from the Chicago metropolitan area (Social Emotional Contexts of Adolescent and Young Adult Smoking Patterns [SECAP], n = 893) and a national sample (Truth Initiative Young Adult Cohort Study [YA Cohort], n = 1,491). Using latent class growth analyses and growth mixture models, five smoking trajectories were identified in each sample: in SECAP: nonsmoking ( n = 658, 73.7%), declining smoking ( n = 20, 2.2%), moderate/stable smoking ( n = 114, 12.8%), high/stable smoking ( n = 79, 8.9%), and escalating smoking ( n = 22, 2.5%); and in YA Cohort: nonsmoking ( n = 1,215, 81.5%), slowly declining smoking ( n = 52, 3.5%), rapidly declining smoking ( n = 50, 3.4%), stable smoking ( n = 139, 9%), and escalating smoking ( n = 35, 2.4%). SSID was most prevalent in moderate/stable smoking (35.5% SECAP), rapidly declining smoking (25.2% YA Cohort), and nonsmoking. Understanding nuances of how smoking identity is formed and used to limit or facilitate smoking behavior in young adults will allow for more effective interventions to reduce tobacco use.

Purpose: Examine correlates of e-cigarette susceptibility among adolescents. Design: Secondary data analyses using the 2018 National Youth Tobacco Survey, excluding participants under 12 and over 17. Setting: United States middle and high schools. Subjects: Never e-cigarette users ( n = 12,439) ages 12-17. Measures: Relationships between e-cigarette susceptibility and age, sex, race/ethnicity, ever tobacco use, perceived ease of purchasing tobacco products, perceived harm, relative addictiveness, household use of e-cigarettes/tobacco were examined. Analysis: Odds of susceptibility were modeled with weighted multivariable logistic regressions. Results: Thirty-five percent (unweighted n = 4,436) of adolescents were susceptible to e-cigarettes. Adolescents who were female (aOR = 1.2), Hispanic (aOR = 1.3), perceived e-cigarettes as anything less than "a lot of harm" (aOR = 2.2-4.9) and "easy" to purchase (aOR = 1.4), had ever used combustible tobacco (aOR = 2.9), or reported household use of e-cigarettes (aOR = 1.5) were susceptible. Non-Hispanic black respondents (vs. non-Hispanic white; aOR = 0.72) had significantly lower odds of susceptibility to e-cigarettes. Conclusion: In the 2018 NYTS adolescent sample, perceptions of harm and ease of tobacco product purchase appear to be significantly related to higher odds of e-cigarette susceptibility, in addition to other demographic factors. Longitudinal data, particularly cohort data following adolescents from susceptible to actual or no use, are needed to assess predictors of e-cigarette use initiation.