Antony Chum, PhD

Assistant Professor

Office: STH 304
905 688 5550 x5870

I received my PhD in Health Geography from the University of Toronto (2012), and completed postdoctoral fellowships at St Michael’s Hospital in Toronto (2014) and at the London School of Hygiene and Tropical Medicine, UK (2016) in social epidemiology and implementation science.

Drawing on the disciplines of social epidemiology, human geography, geospatial analytics, and computer science, my research centres on understanding social and built environmental determinants of health and developing strategies to build healthier cities and communities, especially for marginalized communities such as the homeless, low-income, ethnic minorities, and LGBT+ people. My research approach combines population health data sciences (“big data” analysis) and the application of rigorous social theories (e.g. intersectionality, social ecological theory, minority stress theory, etc.) to investigate social determinants of health and to evaluate interventions aimed at eliminating health disparities.

I am the principal investigator in a number of Tri-council (SSHRC and CIHR funded) projects including: 

  1. CIHR project grant (2020-2024): Evaluating the impact of recreational cannabis legalization on acute care outcomes (Nominated Principal Investigator: Antony Chum, Co-investigators: Patricia O’Campo, Hayley Hamilton, Sara Allin, Maritt Kirst, Tarra Penney, Kay Rittenbach, Frank MacMaster)
  2. SSHRC Insight Development Grant (2020-23): Understanding disparities in substance ¬use related crisis across sexual orientations in Canada (Principal Investigator: Antony Chum)
  3. SSHRC Insight Grant (2020-23): Investigating the social determinants of Lesbian, Gay, and Bisexual mental health in Canada (Principal Investigator: Antony Chum; Co-investigator: Patricia O’Campo and Sidney Kennedy)
  4. CIHR project grant (2019-24): Suicide-Related Behaviours of Lesbians, Gay, and Bisexual individuals in Ontario: Investigating the Socio-Environmental Determinants of Risk and Care using Linked Longitudinal Population-Based Data (Principal Investigator: Antony Chum; Co-investigators: Patricia O’Campo, Simone Vigod, Sidney Kennedy, Lucy Barker, and Flora Matheson)

I welcome trainees and researchers to contact me to discuss research in the following areas using population health data science: 1) social and built environmental determinants of health, 2) epidemiology of mental health and addictions, 3) LGBT Health, 4) housing, homelessness, and health, and 5) healthy urban planning. I am happy to chat with prospective graduate (at the MSc and PhD levels) and postdoctoral opportunities in my lab. 

Teo, C., & Chum, A (senior author). (2020). The effect of neighbourhood cohesion on mental health across sexual orientations: A longitudinal study. Social Science & Medicine, 113499.   

Labetski, A and Chum, A (senior author). (2020) Built Environmental Correlates of Cycling Accidents Involving Fatalities and Serious Injuries in London, UK. Frontiers in Sustainable Cities.  

Chum, A., Wang, R., Nisenbaum, R., O’Campo, P., Stergiopoulos, V., Hwang, H. (2020) The effect of a housing intervention on selected cardiovascular risk factors among homeless adults with mental illness: 24-month follow-up of a randomized controlled trial. Journal of the American Heart Association, 9, 

Chum, A., Lachaud, J., Kaur, S., O’Campo, P., Fink, N. (2019). Challenges in conducting a population-based study investigating associations between neighbourhood social environment and individual mental health. Sage Research Methods.   

Chum, A., O’Campo, P., Lachaud, J., Fink, N., Kirst, M., & Nisenbaum, R. (2019). Evaluating same-source bias in the association between neighbourhood characteristics and depression in a community sample from Toronto, Canada. Social Psychiatry and Psychiatric Epidemiology.

Gee, S., Chum, A. (senior author), & Lim, B. (2019). Moving Metaphors: Shifting responsibility and evidentiary boundaries in (de)commissioning Pre-Exposure Prophylaxis for HIV. Qualitative Health Research. 

 Chum A, Atkinson P, O’Campo P, (2019). Does time spent in the residential neighbourhood moderate the relationship between neighbourhood walkability and transport-related walking? a cross-sectional study from Toronto, Canada. BMJ Open 2019; 9: e023598.  

Chum, A. and O’Campo, P. (2016). In Chapter 7: Designing healthier, more sustainable cities. In WHO and UN Habitat Joint Global report on urban health: equitable, healthier cities for sustainable development. Geneva-Kobe, World Health Organization (WHO). Available at   

Chum, A.Skosireva, A., Tobon, J., & Hwang, S. (2016). Construct Validity of the SF-12v2 for the Homeless Population with Mental Illness: An Instrument to Measure Self-Reported Mental and Physical Health. PloS one, 11(3), e0148856.  

O’Campo, P., Stergiopoulos, V., Nir, P., Levy, M., Misir, V., Chum, A., & Hwang, S. W. (2016). How did a Housing First intervention improve health and social outcomes among homeless adults with mental illness in Toronto? Two-year outcomes from a randomised trial. BMJ open, 6(9), e010581.

Chum, A. (2015). “The impact of gentrification on residential evictions.” Urban Geography. 36(7): 1083-1098.
Chum, A, O’Campo, P, & Matheson, F. (2015). The impact of urban land uses on sleep duration and sleep problems. The Canadian Geographer. 59 (4): 404-418.
Chum, A, & O’Campo, P. (2015). Cross-sectional associations between residential socio-environmental exposures and cardiovascular diseasesBMC Public Health. 14:438. 
Chum, A. Farrell, E, Labetski, A, Vaivada, T, Bohnert, A, O’Campo P. (2015). The effect of food environments on fruit and vegetable intake as modified by time spent at home: a cross-sectional study. BMJ Open. 5:e006200.  

Chum, A, Carpenter, C, Farrell, E, Mook, L, Handy, F, Schugurensky, D, Quarter, J. (2014). Does geographic context influence employability-motivated volunteering? The role of area-level material insecurity and urbanicity. The Canadian Geographer. 59(3), 354-368. 

Mook, L., Farrell, E., Chum, A., Handy, F., Schugurensky, D., & Quarter, J. (2014). Individual and Organizational Factors in the Interchangeability of Paid Staff and Volunteers: Perspectives of Volunteers. Canadian journal of nonprofit and social economy research, 5(2).

Chum A, O’Campo P. (2013). Contextual determinants of cardiovascular diseases: overcoming the residential trap by accounting for non-residential context and duration of exposure. Health & Place. 24, 73-79. 

Chum, A, Mook, L, Handy, F, Schugurensky, D, & Quarter, J. (2013). Degree and Direction of Paid Employee/Volunteer Interchange in Non-profit Organizations. Nonprofit Management & Leadership 23(4), 409-426.

Chum, A. (2011). Policy Implications of Neighbourhood Influences on Health Research: Towards an Alternative to Poverty DeconcentrationHealth and Place. 17(5), 1098-1104. 

Papers under review: 

Teo, C, Metheny, N, & Chum, A (senior author). Evaluating the impact of same-sex marriage on LGB mental health across individuals with varying family support: evidence from a UK cohort study. European Journal of Public Health. 

Chum, ANeilsen, A, & Teo, C. Family support has a long-term effect on sleep problems for sexual minorities: evidence from a UK longitudinal study. BMC Public Health. 

Teo, C, Azra, K, & Chum, A (senior author). Does the impact of neighbourhood cohesion on mental health differ by ethnicity: a UK longitudinal study.  Social Psychiatry and Psychiatric Epidemiology. 

  • Environmental Health
  • Public Health Capstone Project
  • Experiential Learning in Biostatistics