biostudies-literatureLiu JMassachusetts Department of Public HealthNational Cancer InstituteNCI NIH HHSSubstance Abuse and Mental Health Services AdministrationNational Institutes of Health108101https://www.ebi.ac.uk/biostudies/studies/S-EPMC11283349biostudies-literatureUnknown157<h4>Introduction</h4>Little is known about the prevalence and predictors of adolescents' intention to quit or reduce use of e-cigarettes and/or cannabis.<h4>Methods</h4>Frequencies of intention to change (quit, reduce) e-cigarettes and/or cannabis use were examined among 23,915 surveyed middle and high school students with sole and co-use. Predictors of intention to change were identified via LASSO/multilevel logistic regression.<h4>Results</h4>Among those with sole e-cigarette use (n = 543), 40.9 % intended to quit and 24.1 % intended to reduce; non-daily e-cigarette use predicted intention to quit and reduce e-cigarettes (p's < 0.03). Among those with sole cannabis use (n = 546), 10.6 % intended to quit and 25.1 % intended to reduce; absence of cannabis cravings predicted intention to reAddictive behaviorsIntention to quit or reduce e-cigarettes, cannabis, and their co-use among a school-based sample of adolescents.PMC11283349T32 CA0577112T32CA057711-27INTF2300H78500224179INTF2400H78500224455Gilman JLiu JBodolay AEden Evins ASchuster RMKnoll SJGray CAPascale MPPotter KWfalseIntention to quit or reduce e-cigarettes, cannabis, and their co-use among a school-based sample of adolescents.<h4>Introduction</h4>Little is known about the prevalence and predictors of adolescents' intention to quit or reduce use of e-cigarettes and/or cannabis.<h4>Methods</h4>Frequencies of intention to change (quit, reduce) e-cigarettes and/or cannabis use were examined among 23,915 surveyed middle and high school students with sole and co-use. Predictors of intention to change were identified via LASSO/multilevel logistic regression.<h4>Results</h4>Among those with sole e-cigarette use (n = 543), 40.9 % intended to quit and 24.1 % intended to reduce; non-daily e-cigarette use predicted intention to quit and reduce e-cigarettes (p's < 0.03). Among those with sole cannabis use (n = 546), 10.6 % intended to quit and 25.1 % intended to reduce; absence of cannabis cravings predicted intention to re2024-01-01T00:00:00Z2024 Oct2026-06-03T23:51:58.847Z2026-05-03T03:11:23.097ZS-EPMC112833493898635310.1016/j.addbeh.2024.108101