Lynsie Ranker, PhD
Assistant Professor, Community Health Sciences - Boston University School of Public Health
Biography
Lynsie Ranker (she/her) is an Assistant Professor in the Department of Community Health Sciences. She is a social epidemiologist whose research focuses on contextual factors in lived and online environments and their relationships with substance use among adolescents and young adults.
Her recent work uses a combination of epidemiologic methods and social media analytics to examine the influences of social media content on tobacco use and purchasing patterns. Other projects include: variations in alcohol use and treatment access among college students, drinking trajectories from adolescence into young adulthood, and a content analysis of poly-substance use discussions on social media. She is also passionate about teaching and mentoring the next generation of public health practitioners. She has taught courses on mass media & public health and program evaluation.
Lynsie was an A-TRAC career enhancement fellow with the American Heart Association during her postdoctoral training. She received both her PhD in epidemiology and her MPH from BUSPH. Prior to receiving her degree, she assisted program and policy evaluations as an epidemiologist with the Institute for Community Health (Cambridge Health Alliance). In her free time, she enjoys reading science fiction, eating copious amounts of nachos, and going on long walks in her neighborhood while listening to her favorite podcast.
Education
- Boston University School of Public Health, PhD Field of Study: Epidemiology
- Boston University School of Public Health, MPH Field of Study: Epidemiology/Social & Behavioral Sciences
- Boston College, BS Field of Study: Biology
Classes Taught
- SPHEP857
- SPHSB733
Publications
- Published on 12/30/2025
Chen HY, Zhuang Y, Jebai R, Beaudoin C, Ranker LR, Fetterman JL, Cornacchione Ross J, Hong T. Systematic review of eye-tracking experiments evaluating tobacco health warning labels. Tob Control. 2025 Dec 30. PMID: 41469201.
Read At: PubMed
- Published on 10/6/2025
Ranker LR, Katz-Wise SL, Gordon AR, Korkodilos R, Xuan Z, Nelson KM. Sexual orientation identity and attraction changes among youth: prospective versus retrospective measurement. Ann Epidemiol. 2025 Oct 06; 112:8-14. PMID: 41061832.
Read At: PubMed
- Published on 8/23/2025
Cornacchione Ross J, Ranker LR, Fetterman JL, Benjamin EJ, Hong T. Public Support for Warning Label Policies on Social Media Among U.S. Adults in 2024. Am J Prev Med. 2025 Dec; 69(6):108067. PMID: 40854337.
Read At: PubMed
- Published on 7/22/2025
Jebai R, Hong T, Ranker LR, Wu J, Rohila A, Fetterman JL, Cornacchione Ross J. Social Media Engagement and Quit Intentions Among Youth With Exclusive E-cigarette Use: The Moderating Role of Social Norms. Nicotine Tob Res. 2025 Jul 22; 27(8):1438-1446. PMID: 39912206.
Read At: PubMed
- Published on 1/2/2025
Ranker LR, Korkodilos R, Conti J, Nelson KM, Xuan Z, Gordon AR, Katz-Wise SL. One-in-ten adolescents and young adults report changes in their sexual orientation identity over 2-month follow-up: Results from a longitudinal cohort study. Psychol Sex Orientat Gend Divers. 2025 Jan 02. PMID: 41048463.
Read At: PubMed
- Published on 11/29/2024
Wu J, Ranker LR, Origgi JM, Ma J, Hao D, Benjamin EJ, Cornacchione Ross J, Xuan Z, Wijaya D, Fetterman JL, Hong T. Protecting historically marginalized groups or targeted marketing? A computational analysis of individuals engaging with public and protected cigar-branded tweets. Drug Alcohol Depend. 2025 Jan 01; 266:112516. PMID: 39689499.
Read At: PubMed
- Published on 11/12/2024
Ranker LR, Tofu DA, Lu M, Wu J, Bhatnagar A, Robertson RM, Wijaya D, Hong T, Fetterman JL, Xuan Z. Concurrent Mentions of Vaping and Alcohol on Twitter: Latent Dirichlet Analysis. J Med Internet Res. 2024 Nov 12; 26:e51870. PMID: 39531640.
Read At: PubMed
- Published on 11/4/2024
Harlow AF, Hughes Halbert C, Ranker LR, Cho J, Thompson LK, Cockburn M, Eckel SP, Barrington-Trimis JL. Association of Perceived Neighborhood Disorder with Substance Use Behaviors and Retail Access Among Southern California Adolescents. Subst Use Misuse. 2025; 60(2):228-235. PMID: 39497034.
Read At: PubMed
- Published on 10/10/2024
Holt MK, Ranker LR, Kraus AD, Xuan Z, Greif Green J, Katz-Wise SL, Morales K. Recruitment of a U.S. Nation-Wide Sample of Transgender and Gender Diverse Youth. J Adolesc Health. 2024 Dec; 75(6):969-973. PMID: 39387727.
Read At: PubMed
- Published on 9/3/2024
Wu J, Trifiro BM, Ranker LR, Origgi JM, Benjamin EJ, Robertson RM, Bhatnagar A, Stokes AC, Xuan Z, Wijaya D, Plummer B, Cornacchione Ross J, Fetterman JL, Hong T. Health Warnings on Instagram Advertisements for Synthetic Nicotine E-Cigarettes and Engagement. JAMA Netw Open. 2024 Sep 03; 7(9):e2434434. PMID: 39269702.
Read At: PubMed
View 27 more publications:View Full Profile at BUMC
News & In the Media
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Published on September 13, 2024
87% of Branded Vape Posts on Instagram Violate FDA Guidelines, Research Finds
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Published on May 31, 2024
Majority of Youth Are Willing to Answer Questions About Their Sexual Orientation, Gender Identity
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Published on April 25, 2024
Daily Social Media Use Makes Teens More Likely to Start Smoking
- Published on August 31, 2023
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Published on April 21, 2023
Alcohol Use by Age 14 Increases Risk of Drinking into Adulthood