Alexandria A. Ratzki-Leewing, PhD, MSc

• Ph.D., Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, Canada
• M.Sc., Health Research Methodology (Sub-Specialization: Health Services Research), McMaster University, Hamilton, Canada
• B.HSc., Health Sciences, Western University, London, Canada

Dr. Ratzki-Leewing is an Assistant Professor at the University of Maryland Institute for Health Computing and the Division of Gerontology, Department of Epidemiology and Public Health, and the Clinical and Translational Research Informatics Center (CTRIC) at the University of Maryland School of Medicine, Baltimore. She is also an Adjunct Professor in the Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University (Canada).

Her work focuses on leveraging and spotlighting person-reported data and measures to capture the real-world burden of iatrogenic hypoglycemia (low blood sugar caused by certain diabetes treatments) in diverse adult populations with diabetes. To this end, Dr. Ratzki-Leewing has secured over $2 million in national and international research funding to lead interdisciplinary projects across more than 10 countries. Her scientific contributions have been published in top-tier medical journals and incorporated in several diabetes clinical practice guidelines, including the American Diabetes Association (ADA) Standards of Care.

She has delivered >100 research presentations across North America, Europe, and Asia—including more than 15 invited conference symposia—and co-developed over 10 continuing medical education programs. Dr. Ratzki-Leewing is also an editor for the forthcoming ADA compendium on hypoglycemia management in primary care, an invited member of the ADA Conference Planning Hypoglycemia Sub-committee, a fellow of the ADA Women’s Interprofessional Network Group, and a steering committee member of the International Hypoglycaemia Study Group (IHSG).

In 2023, she was named a 'Rising Star' by the International Diabetes Center (Minnesota, USA).

Type 1 and type 2 diabetes epidemiology Hypoglycemia epidemiology Clinical epidemiology and pharmacoepidemiology Real-world methods and data Health survey design Person-reported outcome measures

1. Ratzki-Leewing, A. Aging in the face of diabetes: Severe hypoglycemia in older adults. (2024). Canadian Diabetes & Endocrinology Today, 2(2), 5-11.
2. Ratzki-Leewing, A., Black, J.E., Kahkoska, A.R., Ryan, B.L., Zou, G.-Y., Klar, N., Timcevska, K., Harris, S.B. (2023). Level 3 (severe) hypoglycaemia in a real-world cohort of adults with type 1 or 2 diabetes mellitus (iNPHORM, United States). Diabetes Obes Metab, 25(12), 3736-3747. PMCID: PMC10958739
3. Ratzki-Leewing, A., Black, J.E., Ryan B.L., Zou, G.-Y., Klar, N., Webster-Bogaert, S., Timcevska, K., Harris, S.B. (2023). Development and validation of a real-world model to predict one-year, recurrent Level 3 (severe) hypoglycaemia risk in adults with diabetes (the iNPHORM study, United States). Diabetes Obes Metab, 25(10), 2910-2927.
4. Ratzki-Leewing, A., Ryan B.L., Zou G.-Y., Webster-Bogaert, S., Black, J.E., Stirling K., Timcevska, K., Khan, N., Buchenberger, J.D., Harris, S.B. (2022). Predicting real-world hypoglycemia risk in American adults with type 1 or 2 diabetes mellitus prescribed insulin and/or secretagogues: Protocol for a prospective, 12-wave internet-based panel survey with email support (the iNPHORM [Investigating Novel Predictions of Hypoglycemia Occurrence Using Real-world Models] Study). J Med Internet Res, 11(2), e33726. PMCID: PMC8881777
   
5. Ratzki-Leewing, A., Rizi, E., Harris, S. (2019). Family members: The forgotten players in the diabetes care team (The TALK-HYPO Study). Diabetes Ther, 10(6), 2305–2311. PMCID: PMC6848298