The associations between e-liquid characteristics and its pricing: Evidence from online vape shops.
The associations between e-liquid characteristics and its pricing: Evidence from online vape shops.
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电子液体特征与其定价之间的关联：在线vape商店的证据。
DOI：
10.1371/journal.pone.0286258
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发表时间：
2023
期刊：
影响因子：
3.7
通讯作者：
中科院分区：
文献类型：
--
作者：
鉴于过去十年电子烟使用量的增加，这项研究的目的是从网上电子烟商店获得全面的产品级别信息，这是电子烟用户购买电子烟产品，特别是电子液体产品的最常见渠道之一，并研究各种电子液体产品属性对消费者的吸引力。我们使用网络抓取和广义估计方程(GEE)模型获得并分析了五家在美国全国范围内销售的流行在线Vape商店的数据。结果衡量标准是以下电子液体产品属性的电子液体定价：尼古丁浓度(以毫克/毫升为单位)、尼古丁形式(不含尼古丁、游离碱或盐)、蔬菜甘油/丙二醇比率(VG/PG)和各种口味。我们发现，与不含尼古丁的产品相比，游离尼古丁和尼古丁盐产品的定价分别低1%(p<；0.001)和高12%(p<；0.001)。具体来说，尼古丁盐基电子液体产品的VG/PG比例为50：50的定价比更常见的70/30 VG/PG比例的定价高出10%(P<；0.001)，水果口味的定价比烟草/无香料产品的定价高2%(P<；0.05)。规范所有电子液体产品中的尼古丁形态，以及尼古丁盐基产品中的水果味，将对市场和消费者产生很大影响。对VG/PG比率的偏好因产品尼古丁形式而异。需要更多关于某种尼古丁形式(即游离尼古丁或盐尼古丁)的典型使用者模式的证据，以评估这些法规对公众健康的影响。
Given the increase in electronic cigarette use during the past decade, the objectives of this study are to obtain comprehensive product-level information from online vape shops, which are one of the most common outlets for e-cigarette users to purchase vaping products, especially e-liquid products, and to examine the appeal of various e-liquid product attributes to consumers. We used web scraping and estimation of generalized estimating equation (GEE) models to obtain and analyze data from five popular online vape shops that sell nationwide across the US. The outcome measures are e-liquid pricing for the following e-liquid product attributes: nicotine concentration (in mg/ml), nicotine form (nicotine-free, freebase, or salt), vegetable glycerin/propylene glycol (VG/PG) ratio, and a variety of flavors. We find that the pricing for freebase nicotine and nicotine salt products are 1% (p<0.001) lower and 12% higher (p<0.001), respectively, than that for products that do not contain nicotine. For nicotine salt-based e-liquid products specifically, the pricing for a 50/50 VG/PG ratio is 10% (p<0.001) higher than the pricing for a more common 70/30 VG/PG ratio, and the pricing for fruity flavors is 2% (p<0.05) higher than that for tobacco/unflavored products. Regulating the nicotine form in all e-liquid products and fruity flavor in nicotine salt-based products will have a great impact on the market and consumers. The preference for VG/PG ratio varies by product nicotine form. More evidence on typical user patterns of a certain nicotine form (i.e., freebase or salt nicotine) is needed to assess the public health consequences of these regulations.
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影响因子：
7.4
作者：
Chu KH;Hershey TB;Hoffman BL;Wolynn R;Colditz JB;Sidani JE;Primack BA
通讯作者：
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影响因子：
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13.8
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影响因子：
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影响因子：
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Harvanko, Arit M.;Havel, Christopher M.;Benowitz, Neal L.
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