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Doctoral student in Medical Science (PhD)

Johanna Simin

PhD student

About me

Currently, I am a doctoral student in medical science (PhD) at the Centre for Translational Microbiome Research at Karolinska Institutet. I received my main clinical training in Finland, most of my academic training in Sweden and I have gained a broad knowledge and understanding of clinical epidemiology, and a passion for women’s health.


My goal is to better understand the effects of commonly prescribed drugs on the development of cancer among women. In specific, my research is focused on contemporary use of menopausal hormone therapy and antimicrobial drugs on the risk of particularly female reproductive tract cancers.

Research description

My projects are mainly based on the large, nationwide and population-based Chemoprevention of Cancer cohort. Data is linked to other National Board of Health and Welfare supervised registries, such as the Swedish Prescribed Drug Registry, Patient Registry (in- and outpatient care), Swedish Cancer Registry and Causes of Death Registry. 


Selected publications:

[PubMed ID: 31584190]. Simin J, Rulla MT, Callens S, Engstrand L, Brusselaers N. Menopausal hormone therapy treatment options and ovarian cancer risk: A Swedish prospective population-based matched-cohort study. International journal of cancer. Journal international du cancer. 2019.

[PubMed ID: 28783542]. Simin, J., et al., Menopausal hormone therapy and cancer risk: An overestimated risk? Eur J Cancer, 2017. 84: p. 60-68.


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