ArticleJournal of studies on alcohol and drugs2026
E-Cigarette Use Trajectories and Respiratory Symptoms in Adolescents and Young Adults: Sustained Use Linked to Greater Symptom Frequency.
Article in Journal of studies on alcohol and drugs, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveThis study cross-sequentially examined three measures of self-reported respiratory symptoms and nicotine e-cigarettes (EC) use adjusting for past 30-day use of cannabis/tobacco, COVID-19, and lifetime asthma at baseline (T1) and 12-months (T2).
methodData came from the Emerging Adulthood Health Project. AYAs aged 15-24 (N= 751) self-reported demographics, nicotine/cannabis use, and respiratory symptoms. EC use at T1-T2 was categorized into a) never use, b) non-escalating, c) increasing, or d) sustained use. Binary and linear logistic regressions examined outcomes at T2.
resultsAt T1, participants (M age= 20.56 years [SD= 2.09 years]) were mostly female (n= 423 [56.6%]), White (n= 563 [75.3%]), and college students (n= 510 [68.0%]). In unadjusted analyses, EC sustained use had a significantly higher number of summed symptoms (binary; OR= 1.47, 95% CI [1.04, 2.07], p= .03) and more days with symptoms (OR= 1.64, 95% CI [1.16, 2.32], p= .006) compared to never EC use. In adjusted analyses, sustained EC use had higher American Thoracic Society Questionnaire scores (b=1.48, SE= 0.54, p=.0006) than never EC use, but the number of summed symptoms and days with symptoms became non-significant. Among participants experiencing any day with symptoms (N= 269), sustained (b= 2.05, SE=0.95, p=.03) and non-escalating use (b= 2.73, SE= 1.17, p= .02) was associated with more days with symptoms than never EC use in adjusted analyses.
conclusionsEC use behavior impacts self-reported frequency of respiratory symptoms among AYAs, with those who continue to use reporting more frequent symptoms, after adjusting for tobacco/cannabis use, COVID-19, and asthma.
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