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. Gicas, KM, Blumberg, MJ, Terao, CM, Mejia-Lancheros, C, Nisenbaum, R, Hwang, SW et al.. Examination of bidirectional associations between neurocognitive functioning and housing stability in homeless adults: A longitudinal subgroup analysis of the at Home/Chez Soi study. Neuropsychology. 2023;37 (2):157-165. doi: 10.1037/neu0000885. PubMed PMID:36442002 .
  2. Wiens, K, Rosella, LC, Kurdyak, P, Chen, S, Aubry, T, Stergiopoulos, V et al.. Determinants of Hospital Use and Physician Services Among Adults With a History of Homelessness. Health Serv Insights. 2022;15 :11786329221127150. doi: 10.1177/11786329221127150. PubMed PMID:36325379 PubMed Central PMC9618755.
  3. Thulien, NS, Amiri, A, Hwang, SW, Kozloff, N, Wang, A, Akdikmen, A et al.. Effect of Portable Rent Subsidies and Mentorship on Socioeconomic Inclusion for Young People Exiting Homelessness: A Community-Based Pilot Randomized Clinical Trial. JAMA Netw Open. 2022;5 (10):e2238670. doi: 10.1001/jamanetworkopen.2022.38670. PubMed PMID:36301546 PubMed Central PMC9614573.
  4. Firestone, M, Zewge-Abubaker, N, Salmon, C, McKnight, C, Hwang, SW. Using Concept Mapping to Define Indigenous Housing First in Hamilton, Ontario. Int J Environ Res Public Health. 2022;19 (19):. doi: 10.3390/ijerph191912374. PubMed PMID:36231673 PubMed Central PMC9566522.
  5. 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;99 (5):842-854. doi: 10.1007/s11524-022-00680-0. PubMed PMID:36070045 PubMed Central PMC9561502.
  6. 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.
  7. 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.
  8. 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. 2022;10 (3):E685-E691. doi: 10.9778/cmajo.20210334. PubMed PMID:35853663 PubMed Central PMC9312992.
  9. 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.
  10. 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;30 (6):e4332-e4344. doi: 10.1111/hsc.13826. PubMed PMID:35524402 PubMed Central PMC9347945.
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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