Patterns of nicotine concentrations in electronic cigarettes sold in the United States, 2013-2018
Patterns of nicotine concentrations in electronic cigarettes sold in the United States, 2013-2018
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DOI：
10.1016/j.drugalcdep.2019.05.029
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发表时间：
2019-10-01
影响因子：
4.2
通讯作者：
King, Brian A.
中科院分区：
文献类型：
--
作者：
Romberg, Alexa R.;Lo, Erin J. Miller;King, Brian A.
引言：在过去的半个世纪里，美国的吸烟率显著下降。然而，近年来，包括电子烟在内的新兴烟草产品在美国年轻人和成年人中越来越受欢迎。尼古丁含量是衡量电子烟对个人和人群健康的潜在益处和风险的一个重要因素。这项研究调查了2013年至2018年销售的电子烟产品的尼古丁浓度是如何变化的。方法：从尼尔森获取2013年3月2日至2018年9月8日（共66个月）便利店和大众市场渠道4周内的电子烟销售数据。网上和电子烟商店都没有销售。通过互联网搜索来补充尼古丁浓度和味道的信息。产品按尼古丁浓度、口味、类型（一次性或可充电）和品牌进行分类。评估了销售额、单位销售额和平均尼古丁浓度。结果：2013-2018年期间，所有口味类别和可充电电子烟中销售的电子烟的平均尼古丁浓度总体上都有所增加。2013-2018年，尼古丁浓度较高的电子烟（4% mg/mL）占总销售额的比例从12.3%上升到74.7%，单位份额也有类似的增长。在分析的所有年份中，零尼古丁产品占美元市场份额的比例不到1%。结论：尼古丁浓度较高的电子烟在美国电子烟销售中所占的比例相当大，而且还在不断增加。较高的尼古丁浓度可能会影响电子烟的使用模式，包括青少年开始吸电子烟的危害以及成年吸烟者完全转向电子烟的潜在健康益处。
Introduction: Considerable declines in cigarette smoking have occurred in the U.S. over the past half century. Yet emerging tobacco products, including e-cigarettes, have increased in popularity among U.S. youth and adults in recent years. Nicotine content is an important factor in weighing the potential benefits and risks of e-cigarettes on individual and population level health. This study examined how nicotine concentrations of e-cigarette products sold have changed from 2013 to 2018.Methods: E-cigarette sales data aggregated in 4-week periods from March 2, 2013 to September 8, 2018 (66 months total) from convenience store and mass market channels were obtained from Nielsen. Internet and vape shop sales were not available. Internet searches were used to supplement information for nicotine concentration and flavor. Products were categorized by nicotine concentration, flavor, type (disposable or rechargeable), and brand. Dollar sales, unit sales, and average nicotine concentration were assessed.Results: During 2013-2018, the average nicotine concentration in e-cigarettes sold increased overall, for all flavor categories, and for rechargeable e-cigarettes. The proportion of total dollar sales comprised of higher nicotine concentration e-cigarettes (> 4% mg/mL) increased from 12.3% to 74.7% during 2013-2018, with a similar increase in unit share. Zero-nicotine products accounted for less than 1% of dollar market share across all years analyzed.Conclusions: E-cigarettes with higher nicotine concentrations comprise a substantial and increasing portion of U.S. e-cigarette sales. Higher nicotine concentrations may influence patterns of e-cigarette use, including harms from e-cigarette initiation among youth and potential health benefits for adult smokers switching completely to e-cigarettes.