Comparison of e-cigarette nicotine concentrations used by US adults and youth.

IF 3.3 2区医学 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH

Tobacco Control Pub Date : 2026-10-01 DOI:10.1136/tc-2026-060393

Hongying Daisy Dai, Paula R Guastello

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引用次数: 0

Abstract

Objective: Nicotine concentration is a key characteristic of modern e-cigarette products. This study aims to illuminate age-related differences and temporal trends in nicotine concentrations to help inform strategies to reduce nicotine-related public health risks.

Methods: Data were drawn from the US Population Assessment of Tobacco and Health Study Wave 5 (December 2018-November 2019), Wave 6 (March-November 2021) and Wave 7 (January 2022-April 2023) and analysed in 2026. χ² tests and multivariable regressions were used to compare nicotine levels used in e-cigarettes (ie, unknown, 0%, 0.1-1.7%, 1.8-4.9%, 5.0%+) by age groups at Wave 7 and examine trends in nicotine concentrations for adults (18+) across Waves 5-7.

Results: Among individuals currently using e-cigarettes at Wave 7 (n=3782), about 60.1% of those aged 12-14 and 51.2% of those aged 15-17 reported not knowing nicotine concentrations, and young adults aged 18-24 were the most likely to report using 5.0%+ (38.7% prevalence vs 24.4% of those aged 25-34, 14.6% of 35-54 and 4.3% of 55+). The proportion of adults responding 'I don't know' increased from 15.8% at Wave 5 to 23.8% at Wave 7, especially among those aged 18-24 (13.9-26.0) and 25-34 (13.9-23.6%). The proportion of adults reporting 5.0%+ increased from 13.9% to 24.4%(p<0.0001), and those reporting 0.1-1.7% decreased from 49.2% to 35.4% (p<0.0001).

Conclusions: Over half of youth using e-cigarettes were unaware of the nicotine concentration. High-concentration products have become increasingly prevalent, especially among young adults. Clearer nicotine concentration labelling on e-cigarette products and continued surveillance of nicotine levels are needed.

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美国成年人和青少年使用电子烟尼古丁浓度的比较。

目的：尼古丁浓度是现代电子烟产品的关键特征。本研究旨在阐明尼古丁浓度的年龄相关差异和时间趋势，以帮助制定减少尼古丁相关公共健康风险的策略。方法：数据来自美国烟草与健康人口评估研究第5期（2018年12月- 2019年11月）、第6期（2021年3月- 11月）和第7期（2022年1月- 2023年4月），并于2026年进行分析。使用χ 2检验和多变量回归比较了第7波中不同年龄组电子烟中尼古丁的含量（即未知、0%、0.1-1.7%、1.8-4.9%、5.0%以上），并检查了第5-7波中成人（18岁以上）尼古丁浓度的趋势。结果：在第7波使用电子烟的人群中（n=3782），约60.1%的12-14岁人群和51.2%的15-17岁人群报告不知道尼古丁浓度，18-24岁的年轻人最有可能报告使用5.0%以上的尼古丁（患病率为38.7%，25-34岁为24.4%，35-54岁为14.6%，55岁以上为4.3%）。回答“我不知道”的成年人比例从第5波的15.8%上升到第7波的23.8%，尤其是18-24岁（13.9-26.0）和25-34岁（13.9-23.6%）的人群。报告5.0%以上的成年人比例从13.9%增加到24.4%(p结论：超过一半的青少年使用电子烟不知道尼古丁浓度。高浓度产品已经变得越来越普遍，尤其是在年轻人中。需要在电子烟产品上更清晰地标注尼古丁浓度，并继续监测尼古丁水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tobacco Control 医学-公共卫生、环境卫生与职业卫生

CiteScore

9.10

自引率

26.90%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Tobacco Control is an international peer-reviewed journal covering the nature and consequences of tobacco use worldwide; tobacco''s effects on population health, the economy, the environment, and society; efforts to prevent and control the global tobacco epidemic through population-level education and policy changes; the ethical dimensions of tobacco control policies; and the activities of the tobacco industry and its allies.