Center for Tobacco Studies, Rutgers Biomedical and Health Sciences, New Brunswick, New Jersey, USA
School of Public Health, Rutgers University, Piscataway, New Jersey, USA.
Tob Control. 2022 Nov;31(Suppl 3):s187-s196. doi: 10.1136/tc-2022-057478.
Local e-cigarette sales restrictions (ESRs) may impact e-cigarette use. This study examined the associations between living in localities with various ESR policies and changes in e-cigarette use among young adults in Los Angeles (LA) County, California, USA.
Data were from a cohort of LA County young adults (18-21 years; n=2100) who completed two waves of surveys (Fall 2018-Summer 2019 and Summer-Fall 2020). Local flavoured (n=9) and comprehensive (n=2) ESRs in LA County implemented between June 2019 and May 2020 were identified, coded and merged with the baseline data. Multivariable logistic regressions were used to examine the associations between living in ESR localities and e-cigarette use at follow-up, controlling for covariates and stratified by cigarette smoking at baseline.
Overall, 20.9% and 14.3% of participants lived in localities with flavoured and comprehensive ESRs, respectively. Participants who were non-Hispanic, had higher socioeconomic statuses and were currently using e-cigarettes were generally more likely to live in ESR localities than their counterparts. The associations between living in ESR localities and e-cigarette use at follow-up were not found among baseline non-e-cigarette users regardless of their cigarette smoking status; a positive relationship was found among baseline e-cigarette users who also smoked cigarettes but not among non-smokers.
Participants who lived in localities with various ESR policies were different in their baseline e-cigarette use and socioeconomic backgrounds. Future research examining the potential impact of ESRs on e-cigarette use change should consider the localities' overall sociodemographic and tobacco-using characteristics and individuals' cigarette smoking histories.
地方电子烟销售限制（ESR）可能会影响电子烟的使用。本研究调查了美国加利福尼亚州洛杉矶县（LA）年轻人居住在具有各种 ESR 政策的地区与电子烟使用变化之间的关联。
数据来自洛杉矶县的一组年轻人（18-21 岁；n=2100），他们完成了两轮调查（2018 年秋季-2019 年夏季和 2020 年夏季-秋季）。LA 县在 2019 年 6 月至 2020 年 5 月之间实施了 9 种调味电子烟（n=9）和综合（n=2）ESR，对其进行了识别、编码并与基线数据合并。多变量逻辑回归用于检验居住在 ESR 地区与随访时电子烟使用之间的关联，同时控制协变量，并按基线时吸烟状况进行分层。
总体而言，20.9%和 14.3%的参与者居住在调味和综合 ESR 地区。与非西班牙裔、社会经济地位较高且目前正在使用电子烟的参与者相比，他们更有可能居住在 ESR 地区。无论其吸烟状况如何，基线非电子烟使用者居住在 ESR 地区与随访时电子烟使用之间均未发现关联；在同时吸烟的基线电子烟使用者中发现了正相关关系，但在不吸烟者中则没有。
居住在具有各种 ESR 政策地区的参与者在基线电子烟使用和社会经济背景方面存在差异。未来研究在检验 ESR 对电子烟使用变化的潜在影响时，应考虑到地方的整体社会人口学和烟草使用特征以及个体的吸烟史。
