Ayden Scheim


Affiliate Scientist


Please note Dr. Scheim will not be taking any summer students.

Dr. Scheim is an Affiliate Scientist with the Centre on Drug Policy Evaluation, Li Ka Shing Knowledge Institute.

His primary appointment is as an Assistant Professor of Epidemiology in the Drexel University Dornsife School of Public Health in Philadelphia. He is also an Adjunct Assistant Professor in Epidemiology and Biostatistics at Western University. Dr. Scheim investigates the impacts of social, policy, and healthcare environments on the health of populations facing stigma. In particular, his research program involves community-engaged research with transgender populations and structurally vulnerable people who use drugs.

Recent Publications

  1. Hallarn, J, Scheim, AI, Bauer, GR. Pre-exposure Prophylaxis Awareness and Use Among Transgender and Nonbinary Individuals in Canada. J Acquir Immune Defic Syndr. 2024;96 (4):341-349. doi: 10.1097/QAI.0000000000003443. PubMed PMID:38916428 PubMed Central PMC11195929.
  2. Perez-Brumer, A, Valdez, N, Scheim, AI. The anti-gender threat: An ethical, democratic, and scientific imperative for NIH research/ers. Soc Sci Med. 2024;351 Suppl 1 :116349. doi: 10.1016/j.socscimed.2023.116349. PubMed PMID:38825371 .
  3. Mitra, S, Bouck, Z, Larney, S, Zolopa, C, Høj, S, Minoyan, N et al.. The impact of the COVID-19 pandemic on people who use drugs in three Canadian cities: a cross-sectional analysis. Harm Reduct J. 2024;21 (1):94. doi: 10.1186/s12954-024-00996-x. PubMed PMID:38750575 PubMed Central PMC11097551.
  4. Greenwald, ZR, Werb, D, Feld, JJ, Austin, PC, Fridman, D, Bayoumi, AM et al.. Validation of case-ascertainment algorithms using health administrative data to identify people who inject drugs in Ontario, Canada. J Clin Epidemiol. 2024;170 :111332. doi: 10.1016/j.jclinepi.2024.111332. PubMed PMID:38522754 .
  5. Aghi, K, Anderson, BM, Castellano, BM, Cunningham, A, Delano, M, Dickinson, ES et al.. Rigorous science demands support of transgender scientists. Cell. 2024;187 (6):1327-1334. doi: 10.1016/j.cell.2024.02.021. PubMed PMID:38490174 .
  6. Scheim, AI, Rich, AJ, Zubizarreta, D, Malik, M, Baker, KE, Restar, AJ et al.. Health status of transgender people globally: A systematic review of research on disease burden and correlates. PLoS One. 2024;19 (3):e0299373. doi: 10.1371/journal.pone.0299373. PubMed PMID:38466747 PubMed Central PMC10927095.
  7. Rammohan, I, Gaines, T, Scheim, A, Bayoumi, A, Werb, D. Overdose mortality incidence and supervised consumption services in Toronto, Canada: an ecological study and spatial analysis. Lancet Public Health. 2024;9 (2):e79-e87. doi: 10.1016/S2468-2667(23)00300-6. PubMed PMID:38307685 .
  8. Jones, J, Butler, G, Woody, M, Castel, AD, Kulie, P, Sheets, M et al.. Preferences for and Experiences of an HIV-Prevention Mobile App Designed for Transmasculine People: Pilot Feasibility Trial and Qualitative Investigation. JMIR Form Res. 2023;7 :e51055. doi: 10.2196/51055. PubMed PMID:37733430 PubMed Central PMC10557014.
  9. Tran, GM, Lachowsky, N, Urbanoski, KA, Scheim, AI, Bauer, GR. Correlates of hazardous alcohol drinking among trans and non-binary people in Canada: A community-based cross-sectional study. Drug Alcohol Depend. 2023;250 :110872. doi: 10.1016/j.drugalcdep.2023.110872. PubMed PMID:37406573 .
  10. Ghabrial, MA, Scheim, AI, Chih, C, Santos, H, Adams, NJ, Bauer, GR et al.. Change in Finances, Peer Access, and Mental Health Among Trans and Nonbinary People During the COVID-19 Pandemic. LGBT Health. 2023;10 (8):595-607. doi: 10.1089/lgbt.2022.0296. PubMed PMID:37347954 PubMed Central PMC10712362.
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Affiliations & Other Activities

Postdoctoral Fellow, University of California San Diego