{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T18:11:26Z","timestamp":1778004686969,"version":"3.51.4"},"reference-count":34,"publisher":"BMJ","funder":[{"DOI":"10.13039\/100000026","name":"National Institute on Drug Abuse","doi-asserted-by":"publisher","award":["R15DA059750"],"award-info":[{"award-number":["R15DA059750"]}],"id":[{"id":"10.13039\/100000026","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000096","name":"National Center on Minority Health and Health Disparities","doi-asserted-by":"publisher","award":["P50MD01739"],"award-info":[{"award-number":["P50MD01739"]}],"id":[{"id":"10.13039\/100000096","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Tob Control"],"accepted":{"date-parts":[[2026,4,24]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>This study investigates factors associated with electronic cigarette (e-cigarette) use and secondhand exposure in vehicles among US youth and young adults.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Data were collected from an online panel survey of individuals (N=3482, aged 15\u201325 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.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>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.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>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.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/tc-2025-059919","type":"journal-article","created":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T17:20:44Z","timestamp":1778001644000},"page":"tc-2025-059919","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["E-cigarette use in vehicles: factors associated with secondhand exposure and behaviour from a US young adult sample in 2024"],"prefix":"10.1136","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3503-1731","authenticated-orcid":false,"given":"Elizabeth K","family":"Do","sequence":"first","affiliation":[{"name":"Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"},{"name":"Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joslynn A","family":"Watkins","sequence":"additional","affiliation":[{"name":"Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Madison L","family":"Iskra","sequence":"additional","affiliation":[{"name":"Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-5451-1789","authenticated-orcid":false,"given":"Kristiann","family":"Koris","sequence":"additional","affiliation":[{"name":"Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah","family":"Cha","sequence":"additional","affiliation":[{"name":"Innovations Center, Truth Initiative, Washington, District of Columbia, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3036-9653","authenticated-orcid":false,"given":"Amanda L","family":"Graham","sequence":"additional","affiliation":[{"name":"Innovations Center, Truth Initiative, Washington, District of Columbia, USA"},{"name":"Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA"},{"name":"Department of Oncology, Georgetown University Medical Center\/Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Washington, District of Columbia, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2740-5633","authenticated-orcid":false,"given":"Eric K","family":"Soule","sequence":"additional","affiliation":[{"name":"East Carolina University, Greenville, North Carolina, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0536-2409","authenticated-orcid":false,"given":"Elizabeth C","family":"Hair","sequence":"additional","affiliation":[{"name":"Truth Initiative Schroeder Institute, Washington, District of Columbia, USA"},{"name":"Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA"},{"name":"School of Global Public Health, New York University, New York, New York, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2026,5,5]]},"reference":[{"key":"2026050510203738000_tc-2025-059919v1.1","doi-asserted-by":"crossref","first-page":"843","DOI":"10.1093\/ntr\/nty214","article-title":"History and Current Trends in the Electronic Cigarette Retail Marketplace in the United States: 2010\u20132016","volume":"22","author":"Cantrell","year":"2020","journal-title":"Nicotine Tob Res"},{"key":"2026050510203738000_tc-2025-059919v1.2","doi-asserted-by":"publisher","DOI":"10.1136\/tc-2023-058033"},{"key":"2026050510203738000_tc-2025-059919v1.3","doi-asserted-by":"crossref","unstructured":"Lempert LK , Halpern-Felsher B . 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