About me

I am a PhD student at the Aging Research Center in the Department of Neurobiology, Care Sciences and Society. I am originally from Canada and moved to Sweden in 2018 to pursue a master's in public health epidemiology at Karolinska Institutet. Since then, I have worked as a research assistant at the Aging Research Center and I am now in the first year of my doctoral studies in geriatric epidemiology. I have been affiliated with the Swedish National Graduate School on Ageing and Health (SWEAH) since January 2022.

Research description

My research focuses on frailty in older adults. I am interested in how to best measure frailty, as well as understanding how different risk factors and clinical events impact trajectories of frailty. Multimorbidity patterns are another interest of mine, which I researched in the context of frailty risk in my master's thesis.


Tazzeo C, Rizzuto D, Calderón-Larrañaga A, Roso-Llorach A, Marengoni A, Welmer AK, Onder G, Trevisan C, Vetrano DL. Multimorbidity patterns and risk of frailty in older community-dwelling adults: a population-based cohort study. Age Ageing. 2021 Jul 3:afab138. doi: 10.1093/ageing/afab138. Epub ahead of print. PMID: 34228784 

Vetrano DL, Tazzeo C, Palmieri L, Marengoni A, Zucchelli A, Lo Noce C, Onder G; Italian National Institute of Health Covid-Mortality Group. Comorbidity status of deceased COVID-19 in-patients in Italy. Aging Clin Exp Res. 2021 Aug;33(8):2361-2365. doi: 10.1007/s40520-021-01914-y. Epub 2021 Jun 24. PMID: 34169447; PMCID: PMC8224257. 

Marengoni A, Tazzeo C, Calderón-Larrañaga A, Roso-Llorach A, Onder G, Zucchelli A, Rizzuto D, Vetrano DL. Multimorbidity Patterns and 6-Year Risk of Institutionalization in Older Persons: The Role of Social Formal and Informal Care. J Am Med Dir Assoc. 2021 Feb 6:S1525-8610(21)00060-8. doi: 10.1016/j.jamda.2020.12.040. Epub ahead of print. PMID: 33556330. 

Tazzeo C, Pritchard JM, Papaioannou A, Adachi JD. Promoting Osteoporosis Best Practices: A New Electronic Medical Record Tool. J Am Med Dir Assoc. 2020 Sep;21(9):1349-1352. doi: 10.1016/j.jamda.2020.06.023. Epub 2020 Jul 29. PMID: 32739281. 

Teaching portfolio

Teaching assistant for "Epidemiology in primary healthcare: cohort and case-control;" Research school of medicine and primary care, Karolinska Institutet (2021)

Teaching assistant for "Arts and Science Economics: Principles and Policy (ARTSSCI 2E03);" McMaster University (2016)


Master of Medical Science with a Major in Public Health Sciences, Karolinska Institutet (2020)

Honours Bachelor of Arts and Science, McMaster University (2018)

Academic honours, awards and prizes

Association of Family Health Teams of Ontario Bright Lights Quality Improvement Research Grant (2017)