Impact of the COVID-19 pandemic on lymphoma incidence and short-term survival – a Swedish Lymphoma Register Study

Authors

  • Sara Ekberg Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
  • Daniel Molin Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden; cDepartment of Cancer Immunotherapy, Uppsala University, Uppsala, Sweden
  • Simon Pahnke Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden; cDepartment of Cancer Immunotherapy, Uppsala University, Uppsala, Sweden
  • Fanny Bergström Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
  • Elsa Brånvall Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Department of Medicine, Capio St Göran Hospital, Stockholm, Sweden
  • Karin E. Smedby Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
  • Tove Wästerlid Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Department of Hematology, Karolinska University Hospital, Stockholm, Sweden

DOI:

https://doi.org/10.2340/1651-226X.2024.35238

Keywords:

COVID-19, pandemic, lymphoma, incidence, mortality

Abstract

Background & purpose: The COVID-19 pandemic posed a large challenge for healthcare systems across the world. Comprehensive data on the impact of the COVID-19 pandemic on incidence and mortality in lymphoma are lacking.

Patients/methods: Using data from the Swedish lymphoma register, we compare incidence and 1-year survival of lymphoma patients in Sweden before (2017–2019) and during the pandemic (2020 and 2021).

Results: Fewer patients were diagnosed with lymphomas during March–June 2020, but the annual incidence rates for 2020 and 2021 were similar to those of 2017–2019. A larger proportion of patients presented with stage IV disease during 2021. There were no differences in other base-line characteristics nor application of active treatment in pre-pandemic and pandemic years. One-year overall survival was not inferior among lymphoma patients during the pandemic years compared to pre-pandemic years i.e., 2017–2019.

Interpretation: The COVID-19 pandemic had limited impact on the incidence and mortality of lymphoma in Sweden.

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References

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Additional Files

Published

2024-04-09

How to Cite

Ekberg, S., Molin, D., Pahnke, S., Bergström, F., Brånvall, E., Smedby, K. E., & Wästerlid, T. (2024). Impact of the COVID-19 pandemic on lymphoma incidence and short-term survival – a Swedish Lymphoma Register Study. Acta Oncologica, 63(1), 164–168. https://doi.org/10.2340/1651-226X.2024.35238

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