Julius B. Richmond Center of Excellence, American Academy of Pediatrics, Itasca, Illinois;
Social Science Research Center, Mississippi State University, Starkville, Mississippi.
Pediatrics. 2018 Oct;142(4). doi: 10.1542/peds.2018-0260. Epub 2018 Sep 10.
: media-1vid110.1542/5804914521001PEDS-VA_2018-0260 BACKGROUND: Little is known about the characteristics of electronic cigarettes (e-cigarettes) used by adolescents. Understanding the product landscape of adolescent e-cigarette use may inform counseling and policy strategies.
Results are from 13 651 adolescents in wave 1 and 12 172 adolescents in wave 2 of the Population Assessment of Tobacco and Health Study, a nationally representative longitudinal study. Past 30-day regular e-cigarettes users were asked about the characteristics of the e-cigarette they used most of the time.
In waves 1 and 2, 2.1% and 2.8% of adolescents were regular users in the past 30 days, respectively. These adolescents more often used rechargeable rather than disposable devices (wave 1: 76.0%; wave 2: 82.9%) and refillable rather than nonrefillable devices (wave 1: 66.6%; wave 2: 84.4%) and tended not to use cartridge systems (wave 1: 33.7%; wave 2: 30.5%). Most adolescent past 30-day users (wave 1: 87.5%; wave 2: 89.4%) reported using flavored e-cigarettes. An increased frequency of use was associated with the use of rechargeable (wave 1 adjusted odds ratio [aOR]: 2.7; wave 2 aOR: 2.7) and refillable e-cigarettes (wave 1 aOR: 2.0; wave 2 aOR: 2.7; < .05). Most users in wave 1 did not continue regular use in wave 2 (70.2%). Among those who continued to use and had reported using closed systems (nonrechargeable and/or nonrefillable) in wave 1, most had progressed to open systems (rechargeable and refillable) in wave 2.
Most adolescents use open-system e-cigarettes, and frequent users are even more likely to use open-system e-cigarettes. The majority of regular users use rechargeable devices that are refillable. A change in product preferences across waves suggests a starter product phenomenon, with a graduation to products that have weaker quality controls and may increase health risks.
媒体-1vid110.1542/5804914521001PEDS-VA_2018-0260 背景：青少年使用电子烟（e-cigarette）的特点鲜为人知。了解青少年电子烟使用的产品情况可能有助于制定咨询和政策策略。
本研究结果来自全国代表性纵向研究“人口烟草与健康评估研究”中第 1 波和第 2 波的 13651 名青少年和 12172 名青少年。过去 30 天内经常使用电子烟的青少年被问及他们最常使用的电子烟的特点。
第 1 波和第 2 波中，分别有 2.1%和 2.8%的青少年过去 30 天内为经常使用者。这些青少年更常使用可充电而非一次性设备（第 1 波：76.0%；第 2 波：82.9%）和可再填充而非不可再填充设备（第 1 波：66.6%；第 2 波：84.4%），而且不太使用墨盒系统（第 1 波：33.7%；第 2 波：30.5%）。大多数青少年过去 30 天使用者（第 1 波：87.5%；第 2 波：89.4%）报告使用调味电子烟。使用频率增加与使用可充电（第 1 波调整后的优势比[OR]：2.7；第 2 波 OR：2.7）和可再填充电子烟（第 1 波 OR：2.0；第 2 波 OR：2.7；<0.05）有关。第 1 波中大多数使用者在第 2 波中不再继续经常使用（70.2%）。在那些继续使用并在第 1 波中报告使用封闭式系统（不可充电和/或不可再填充）的使用者中，大多数人在第 2 波中已过渡到开放式系统（可充电和可再填充）。
大多数青少年使用开放式电子烟，且频繁使用者更有可能使用开放式电子烟。大多数经常使用者使用可充电且可再填充的设备。在各波之间产品偏好的变化表明存在入门产品现象，从质量控制较弱且可能增加健康风险的产品逐渐过渡。
