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. Kerman, N, Wang, R, Aubry, T, Distasio, J, Gaetz, S, Hwang, SW et al.. Shelter Bans Among People Experiencing Homelessness: an Exploratory Study of Predictors in Two Large Canadian Datasets. J Urban Health. 2022; :. doi: 10.1007/s11524-022-00680-0. PubMed PMID:36070045 .
  2. Richard, L, Liu, M, Jenkinson, JIR, Nisenbaum, R, Brown, M, Pedersen, C et al.. COVID-19 Vaccine Coverage and Sociodemographic, Behavioural and Housing Factors Associated with Vaccination among People Experiencing Homelessness in Toronto, Canada: A Cross-Sectional Study. Vaccines (Basel). 2022;10 (8):. doi: 10.3390/vaccines10081245. PubMed PMID:36016133 PubMed Central PMC9412474.
  3. Jenkinson, JIR, Sniderman, R, Gogosis, E, Liu, M, Nisenbaum, R, Pedersen, C et al.. Exploring COVID-19 vaccine uptake, confidence and hesitancy among people experiencing homelessness in Toronto, Canada: protocol for the Ku-gaa-gii pimitizi-win qualitative study. BMJ Open. 2022;12 (8):e064225. doi: 10.1136/bmjopen-2022-064225. PubMed PMID:35977770 PubMed Central PMC9388714.
  4. Hodwitz, K, Parsons, J, Juando-Pratts, C, Rosenthal, E, Craig-Neil, A, Hwang, SW et al.. Challenges faced by people experiencing homelessness and their providers during the COVID-19 pandemic: a qualitative study. CMAJ Open. ;10 (3):E685-E691. doi: 10.9778/cmajo.20210334. PubMed PMID:35853663 PubMed Central PMC9312992.
  5. Liu, M, Koh, KA, Hwang, SW, Wadhera, RK. Mental Health and Substance Use Among Homeless Adolescents in the US. JAMA. 2022;327 (18):1820-1822. doi: 10.1001/jama.2022.4422. PubMed PMID:35536272 PubMed Central PMC9092208.
  6. Mejia-Lancheros, C, Alfayumi-Zeadna, S, Lachaud, J, O'Campo, P, Gogosis, E, Da Silva, G et al.. Differential impacts of COVID-19 and associated responses on the health, social well-being and food security of users of supportive social and health programs during the COVID-19 pandemic: A qualitative study. Health Soc Care Community. 2022; :. doi: 10.1111/hsc.13826. PubMed PMID:35524402 PubMed Central PMC9347945.
  7. Lee, SH, Hwang, SW, Park, SH, Yang, DH, Byeon, JS, Myung, SJ et al.. Fecal S100A12 is associated with future hospitalization and step-up of medical treatment in patients with Crohn's disease in clinical remission: a pilot study. Intest Res. 2022;20 (2):203-212. doi: 10.5217/ir.2021.00020. PubMed PMID:35508954 PubMed Central PMC9081997.
  8. Sayani, A, Maybee, A, Manthorne, J, Nicholson, E, Bloch, G, Parsons, JA et al.. Equity-Mobilizing Partnerships in Community (EMPaCT): Co-Designing Patient Engagement to Promote Health Equity. Healthc Q. 2022;24 (SP):86-92. doi: 10.12927/hcq.2022.26768. PubMed PMID:35467517 .
  9. Liu, M, Richard, L, Campitelli, MA, Nisenbaum, R, Dhalla, IA, Wadhera, RK et al.. Hospitalizations During the COVID-19 Pandemic Among Recently Homeless Individuals: a Retrospective Population-Based Matched Cohort Study. J Gen Intern Med. 2022;37 (8):2016-2025. doi: 10.1007/s11606-022-07506-4. PubMed PMID:35396658 PubMed Central PMC8992790.
  10. Sayani, A, Manthorne, J, Nicholson, E, Bloch, G, Parsons, JA, Hwang, SW et al.. Toward equity-oriented cancer care: a Strategy for Patient-Oriented Research (SPOR) protocol to promote equitable access to lung cancer screening. Res Involv Engagem. 2022;8 (1):11. doi: 10.1186/s40900-022-00344-y. PubMed PMID:35382905 PubMed Central PMC8980795.
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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