• Dae-Hee Han and Eunkyung Shin.
• Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, USA; Institute for Addiction Science, University of Southern California, Los Angeles, CA, USA. Electronic address: daeheeha@usc.edu.
• Prev Med. 2024 Jan 1; 178: 107795107795.

PurposeThis study examined prospective association of parenting practices related to tobacco use with adolescent e-cigarette use and the moderating role of mental health among U.S. young adolescents.MethodsWe study used multi-wave longitudinal data (2013-2018) drawn from the Population Assessment of Tobacco and Health Study. A total of 5114 young adolescents (12-14 years) who were not lost to follow-ups across four waves (Wave 1-4) comprised the study sample. Weighted logistic regression models along with generalized linear mixed modeling assessed the within-subject associations of parenting practices related to tobacco use (tobacco availability at parent/guardian's home, past-year parent talk about tobacco use, and rules about non-combustible tobacco use at home) with adolescent current e-cigarette use.ResultsPrevalence of having home rules about non-combustible tobacco use increased (74.5%-80.2%) and that of parent talk about tobacco use decreased (52.0%-33.9%) over time while tobacco availability at home did not show a specific trend. Tobacco availability at home was associated with increased odds of adolescent e-cigarette use (adjusted odd ratio[OR] = 2.25, 95% confidence interval[CI] = 1.72-2.95), and having home rules about non-combustible tobacco use was linked to decreased likelihood of e-cigarette use (adjusted OR = 0.72, 95% CI = 0.55-0.92). The magnitude of negative association between having rules about non-combustible tobacco and adolescent e-cigarette use was stronger among adolescents with internalizing problems but weaker among those with externalizing problems.ConclusionsOur findings highlight the important role of home-based interventions in discouraging young adolescents from e-cigarette use. Parents/guardians should consider adolescents' mental health to provide more efficient home- and/or clinical-based e-cigarette use prevention.Copyright © 2023 Elsevier Inc. All rights reserved.

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