Abstract:
OBJECTIVE:E-cigarettes are popular among youth, but little is known about the nicotine concentrations of e-liquids used by adolescents. MATERIALS AND METHOD:In Spring, 2014, we conducted cross-sectional surveys in four Connecticut high schools and two middle schools. Among past-30-day e-cigarette users (n=513, 45% female, mean age 15.9 [SD=1.4]), we examined what nicotine concentration adolescents typically used in their e-cigarettes (range 0-30mg/mL and "I don't know"). We first examined whether age, sex, smoking status, e-cigarette use frequency, and/or e-cigarette acquisition source were associated with using nicotine-free e-liquid, nicotine e-liquid, or not knowing the e-liquid nicotine concentration. Among nicotine users (n=185), we then examined whether the aforementioned variables were associated with using higher nicotine concentrations. RESULTS:Adolescents reported using nicotine-free e-liquid (28.5%), nicotine e-liquid (37.4%), or not knowing their e-liquid nicotine concentration (34.1%). Nicotine users comprised more smokers and heavier e-cigarette users compared to nicotine-free e-liquid users and those who did not know their nicotine concentration. Nicotine users also comprised more males and were more likely to purchase e-cigarettes online or from tobacco shops compared to those who did not know their nicotine concentration. Among nicotine users, cigarette smoking, male sex, and purchasing e-cigarettes from tobacco shops predicted using higher nicotine concentrations. CONCLUSIONS:Adolescents reported using e-liquids with variable nicotine concentrations. Smokers, males, and those who purchased their own e-cigarettes reported using the highest nicotine levels. Of concern, many adolescents were unaware of the nicotine concentration in their e-liquid, raising concerns about inadvertent nicotine exposure among youth.
journal_name
Drug Alcohol Dependjournal_title
Drug and alcohol dependenceauthors
Morean ME,Kong G,Cavallo DA,Camenga DR,Krishnan-Sarin Sdoi
10.1016/j.drugalcdep.2016.06.031subject
Has Abstractpub_date
2016-10-01 00:00:00pages
224-7eissn
0376-8716issn
1879-0046pii
S0376-8716(16)30179-Xjournal_volume
167pub_type
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pub_type: 杂志文章,评审
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