Please note: Dr. Hwang is not taking any summer students.

Research Interests

Homelessness, housing as a social determinant of health, health care for homeless persons, marginalized populations, inner city health, urban health, socioeconomic status, access to care, community-based health care, health services research.

Research Activities

Dr. Hwang’s research program focuses on interventions to improve the health of people experiencing homelessness, and to interrupt chronic homelessness itself.


Recent Publications

  1. Wiens, K, Bai, L, Hwang, SW, Ronksley, PE, Austin, PC, Booth, GL et al.. Disparities in diabetes processes of care among people experiencing homelessness: An opportunity for intervention. Diabetes Res Clin Pract. 2024;213 :111748. doi: 10.1016/j.diabres.2024.111748. PubMed PMID:38885743 .
  2. Richard, L, Carter, B, Nisenbaum, R, Liu, M, Hwang, SW. Identification of homelessness using health administrative data in Ontario, Canada following a national coding mandate: a validation study. J Clin Epidemiol. 2024;172 :111430. doi: 10.1016/j.jclinepi.2024.111430. PubMed PMID:38880439 .
  3. Agha, A, Hwang, SW, Palepu, A, Aubry, T. The role of housing stability in predicting social capital: Exploring social support and psychological integration as mediators for individuals with histories of homelessness and vulnerable housing. Am J Community Psychol. 2024; :. doi: 10.1002/ajcp.12754. PubMed PMID:38713847 .
  4. Richard, L, Golding, H, Saskin, R, Shariff, SZ, Jenkinson, JIR, Pridham, KF et al.. Trends in emergency department visits during cold weather seasons among patients experiencing homelessness in Ontario, Canada: a retrospective population-based cohort study. CJEM. 2024;26 (5):339-348. doi: 10.1007/s43678-024-00675-7. PubMed PMID:38578567 .
  5. Kerman, N, Marshall, CA, Polillo, A, Voronov, J, de Pass, T, Easton, C et al.. Service restrictions from emergency shelters among people experiencing homelessness: Uncovering pathways into unsheltered homelessness and institutional circuitry. Soc Sci Med. 2024;348 :116831. doi: 10.1016/j.socscimed.2024.116831. PubMed PMID:38574591 .
  6. Richard, L, Nisenbaum, R, Colwill, K, Mishra, S, Dayam, RM, Liu, M et al.. Enhancing detection of SARS-CoV-2 re-infections using longitudinal sero-monitoring: demonstration of a methodology in a cohort of people experiencing homelessness in Toronto, Canada. BMC Infect Dis. 2024;24 (1):125. doi: 10.1186/s12879-024-09013-9. PubMed PMID:38302878 PubMed Central PMC10835952.
  7. Jamal, O, Mallipatna, A, Hwang, SW, Dimaras, H. Social Determinants of Health in Pediatric Ophthalmology Patients: Availability of Data in the Electronic Health Record and Association With Clinic Attendance. Transl Vis Sci Technol. 2023;12 (11):36. doi: 10.1167/tvst.12.11.36. PubMed PMID:38019501 PubMed Central PMC10691384.
  8. Booth, RG, Shariff, SZ, Carter, B, Hwang, SW, Orkin, AM, Forchuk, C et al.. Opioid-related overdose deaths among people experiencing homelessness, 2017 to 2021: A population-based analysis using coroner and health administrative data from Ontario, Canada. Addiction. 2024;119 (2):334-344. doi: 10.1111/add.16357. PubMed PMID:37845790 .
  9. Stephenson, R, Sarhangian, V, Park, J, Sankar, A, Baxter, NN, Stukel, TA et al.. Evolution of the surgical procedure gap during and after the COVID-19 pandemic in Ontario, Canada: cross-sectional and modelling study. Br J Surg. 2023;110 (12):1887-1889. doi: 10.1093/bjs/znad289. PubMed PMID:37724806 PubMed Central PMC10638533.
  10. Katz, A, Agahbanaei, N, Cheff, R, Harris, T, Hwang, SW, Schmidt, C et al.. Hospital Care for Patients Uninsured due to Immigration Status during the COVID-19 Pandemic in Toronto: Lessons from Front-Line Knowledge Translation. Healthc Q. 2023;26 (2):24-31. doi: 10.12927/hcq.2023.27144. PubMed PMID:37572068 .
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Affiliations & Other Activities

  • Scientist, Li Ka Shing Knowledge Institute, St. Michael’s Hospital
  • Staff Physician, Division of General Internal Medicine, St. Michael’s Hospital
  • Director, Division of General Internal Medicine, University of Toronto
  • Professor, Department of Medicine, University of Toronto
  • Professor, Dalla Lana School of Public Health, University of Toronto
  • Professor, Institute of Health Policy, Management and Evaluation, University of Toronto