Ahmed M. Bayoumi


Scientist, Li Ka Shing Knowledge Institute


Dr. Ahmed Bayoumi is a Scientist at the Centre for Urban Health Solutions at the Li Ka Shing Knowledge Institute of St. Michael’s Hospital, a general internist and Human Immunodeficiency Virus (HIV) physician at St. Michael’s Hospital. He holds the Foundation Baxter & Alma Ricard Chair in Inner City Health at St. Michael’s and the University of Toronto. He is a Professor in the Department of Medicine and in the Institute of Health Policy, Management and Evaluation at the University of Toronto.

His research interests include economic evaluation, decision analysis, and quality of life assessment for HIV-related health interventions, and studies of the access to the delivery of health services, particularly to people living with HIV, injection drug users, and other marginalized populations. His work has included cost-effectiveness analyses of screening strategies for HIV, drug treatments for HIV and related conditions, and supervised injection sites for injection drug users. He also studies how to incorporate equity concerns into resource allocation decisions in a manner that is defensible, transparent, and principled. He is an Adjunct Scientist at the Institute for Clinical Evaluative Sciences. He is currently President of the Society for Medical Decision Making and is a member of the Canadian Drug Expert Committee. He is a past Director of Clinical Epidemiology and Health Care Research in the Institute of Health Policy, Management and Evaluation at the University of Toronto.

Recent Publications

  1. Antoniou, T, Szadkowski, L, Walmsley, S, Cooper, C, Burchell, AN, Bayoumi, AM et al.. Comparison of atazanavir/ritonavir and darunavir/ritonavir based antiretroviral therapy for antiretroviral naïve patients. BMC Infect. Dis. 2017;17 (1):266. doi: 10.1186/s12879-017-2379-8. PubMed PMID:28399819 PubMed Central PMC5387339.
  2. Tsang, J, Mishra, S, Rowe, J, O'Campo, P, Ziegler, C, Kouyoumdjian, FG et al.. Transitional care for formerly incarcerated persons with HIV: protocol for a realist review. Syst Rev. 2017;6 (1):29. doi: 10.1186/s13643-017-0428-4. PubMed PMID:28193290 PubMed Central PMC5307639.
  3. Gillis, J, Loutfy, M, Bayoumi, AM, Antoniou, T, Burchell, AN, Walmsley, S et al.. A Multi-State Model Examining Patterns of Transitioning Among States of Engagement in Care in HIV-Positive Individuals Initiating Combination Antiretroviral Therapy. J. Acquir. Immune Defic. Syndr. 2016;73 (5):531-539. doi: 10.1097/QAI.0000000000001109. PubMed PMID:27851713 PubMed Central PMC5119642.
  4. O'Brien, KK, Bayoumi, AM, Solomon, P, Tang, A, Murzin, K, Chan Carusone, S et al.. Evaluating a community-based exercise intervention with adults living with HIV: protocol for an interrupted time series study. BMJ Open. 2016;6 (10):e013618. doi: 10.1136/bmjopen-2016-013618. PubMed PMID:27798038 PubMed Central PMC5073553.
  5. Luca, NJ, Burnett, HF, Ungar, WJ, Moretti, ME, Beukelman, T, Feldman, BM et al.. Cost-Effectiveness Analysis of First-Line Treatment With Biologic Agents in Polyarticular Juvenile Idiopathic Arthritis. Arthritis Care Res (Hoboken). 2016;68 (12):1803-1811. doi: 10.1002/acr.22903. PubMed PMID:27059807 .
  6. Lofters, AK, Guilcher, SJ, Webster, L, Glazier, RH, Jaglal, SB, Bayoumi, AM et al.. Cholesterol testing among men and women with disability: the role of morbidity. Clin Epidemiol. 2016;8 :313-21. doi: 10.2147/CLEP.S108761. PubMed PMID:27621668 PubMed Central PMC5012623.
  7. Ng, R, Kendall, CE, Burchell, AN, Bayoumi, AM, Loutfy, MR, Raboud, J et al.. Emergency department use by people with HIV in Ontario: a population-based cohort study. CMAJ Open. ;4 (2):E240-8. doi: 10.9778/cmajo.20150087. PubMed PMID:27398370 PubMed Central PMC4933601.
  8. Bayoumi, AM, Strike, CJ. Making the case for supervised injection services. Lancet. 2016;387 (10031):1890-1. doi: 10.1016/S0140-6736(16)30308-7. PubMed PMID:27203635 .
  9. Grewal, R, Allen, VG, Gardner, S, Moravan, V, Tan, DH, Raboud, J et al.. Serosorting and recreational drug use are risk factors for diagnosis of genital infection with chlamydia and gonorrhoea among HIV-positive men who have sex with men: results from a clinical cohort in Ontario, Canada. Sex Transm Infect. 2017;93 (1):71-75. doi: 10.1136/sextrans-2015-052500. PubMed PMID:27154185 PubMed Central PMC5293859.
  10. Ng, VT, Bayoumi, AM, Fang, J, Burton, KR, Stamplecoski, M, Edwards, JD et al.. Temporal Trends in the Use of Investigations After Stroke or Transient Ischemic Attack. Med Care. 2016;54 (5):430-4. doi: 10.1097/MLR.0000000000000499. PubMed PMID:27075901 .
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Affiliations & Other Activities

  • Research Scientist, Centre for Urban Health Solutions, St. Michael’s Hospital
  • Professor, Department of Medicine, University of Toronto
  • Professor, Institute of Health Policy, Management and Evaluation, University of Toronto