ReviewJournal of asthma and allergy2026
Comparing the Effects of e-Cigarettes and Traditional Cigarettes on Asthma in Adolescents: A Systematic Review.
Review in Journal of asthma and allergy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
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Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Asthma is one of the most common chronic diseases among teenagers, and environmental factors such as smoking worsen the condition. The growing popularity of e-cigarettes raises concerns over their potential effects on asthma in adolescents compared to traditional cigarettes. This systematic review sought to evaluate the differences between e-cigarettes and traditional cigarettes in relation to asthma diagnosis, exacerbations, and symptoms in adolescents using quantitative studies conducted between 2015 and July 2025. Following PRISMA guidelines, we searched PubMed, Scopus, and the Web of Science and found 427 articles. After removing duplicates (n=188) and ineligible studies (n=229), we included 10 studies (1 cohort, 9 cross-sectional). Inclusion criteria included focus on adolescents, comparison of e-cigarettes and traditional cigarettes, and studies with asthma-related outcomes. Study quality was evaluated using Newcastle-Ottawa Scale (NOS; scores 6-8/10). Extracted data were narratively synthesized and comparatively analyzed across exposure groups due to heterogeneity in study design, outcomes, and effect measures. e-cigarettes were found to increase the likelihood of developing asthma more than traditional cigarettes among adolescents (AOR=1.10-1.30). Statistically significant relationships were also detected between exacerbations of asthma and e-cigarette use (AOR=2.13; APR=1.54-1.85). The impact of traditional cigarettes (AOR=0.80-8.49) was mixed. The highest risk was observed in dual users. The sexual minority and non-Hispanic Black youth showed greater susceptibility. Self-reporting, along with data obtained from cross-sectional designs, created a lack of causation. Both e-cigarettes and traditional cigarettes were associated with increased asthma-related outcomes, with the highest risk observed in dual users. There is a need for aggressive policies including flavor and age restrictions, as well as focused policies for those most at risk. To understand the strategies needed to lessen the burden of asthma in children and youth, clinical designed longitudinal studies will help identify the specific devices and causational factors.
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