{
  "abstract": "Background This study investigates factors associated with electronic cigarette (e-cigarette) use and secondhand exposure in vehicles among US youth and young adults.Methods Data were collected from an online panel survey of individuals (N=3482, aged 15–25 years) from July to December 2024. Analyses included those who reported using any tobacco product in the past 30 days and answered items measuring exposure to (N=2600) and/or use of e-cigarettes in vehicles (N=2366). Logistic regression models assessed predictors of e-cigarette use and exposure in vehicles, including demographic, psychosocial and tobacco use characteristics.Results Among all participants, 67.1% reported e-cigarette use in the past 30 days. Of those reporting current e-cigarette use (N=2336), 60.6% reported using their e-cigarette/vape while travelling by car in the past 30 days. Of those who answered the question measuring exposure to e-cigarette use in vehicles (N=2600), 69.3% reported being in a vehicle where someone was using e-cigarettes. Higher nicotine dependence and residence in small metro and non-metro areas were associated with greater odds of using e-cigarettes in vehicles. Just meeting basic expenses or meeting needs with a little left, household tobacco use and residence in small metro areas were associated with greater odds of secondhand e-cigarette exposure.Discussion Public health interventions should place a strong focus on education and increasing public awareness of the health consequences of e-cigarette use in vehicles to protect bystanders from secondhand e-cigarette exposure.",
  "authors": [
    {
      "affiliations": [
        "Truth Initiative Schroeder Institute, Washington, District of Columbia, USA",
        "Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA"
      ],
      "name": "Elizabeth K Do"
    },
    {
      "affiliations": [
        "Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"
      ],
      "name": "Joslynn A Watkins"
    },
    {
      "affiliations": [
        "Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"
      ],
      "name": "Madison L Iskra"
    },
    {
      "affiliations": [
        "Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"
      ],
      "name": "Kristiann Koris"
    },
    {
      "affiliations": [
        "Innovations Center, Truth Initiative, Washington, District of Columbia, USA"
      ],
      "name": "Sarah Cha"
    },
    {
      "affiliations": [
        "Innovations Center, Truth Initiative, Washington, District of Columbia, USA",
        "Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA",
        "Department of Oncology, Georgetown University Medical Center/Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Washington, District of Columbia, USA"
      ],
      "name": "Amanda L Graham"
    },
    {
      "affiliations": [
        "East Carolina University, Greenville, North Carolina, USA"
      ],
      "name": "Eric K Soule"
    },
    {
      "affiliations": [
        "Truth Initiative Schroeder Institute, Washington, District of Columbia, USA",
        "Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA",
        "School of Global Public Health, New York University, New York, New York, USA"
      ],
      "name": "Elizabeth C Hair"
    }
  ],
  "title": "E-cigarette use in vehicles: factors associated with secondhand exposure and behaviour from a US young adult sample in 2024",
  "uid": "11ef641b-7f5d-5b60-95aa-7f4187ada24e"
}