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. 2021 Nov;60(11):1459-1465.
doi: 10.1080/0284186X.2021.1958005. Epub 2021 Aug 2.

Clinical characteristics and factors associated with COVID-19-related death and morbidity among hospitalized patients with cancer: a Swedish cohort study

Helena Ullgren  1   2   3 , Angela Camuto  4 , Sumy Rosas  3 , Simon Pahnke  4 , Beatrice Ginman  4 , Gunilla Enblad  4 , Ingrid Glimelius  4 , Per Fransson  1 , Signe Friesland  3   5 , Lisa L Liu  3   5
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Free article

Clinical characteristics and factors associated with COVID-19-related death and morbidity among hospitalized patients with cancer: a Swedish cohort study

Helena Ullgren et al. Acta Oncol. 2021 Nov.
Free article

Abstract

Introduction: Cancer patients are considered to have a higher risk of dying and developing severe Coronavirus Disease 2019 (COVID-19). To date, there are few studies including co-morbidities and sociodemographic factors when investigating the outcome of COVID-19 in a cohort of cancer patients. In this study, we analyzed cancer patients that have been hospitalized due to COVID-19 during the first wave of the pandemic in Sweden to investigate the impact of COVID-19 on mortality and morbidity.

Patients and methods: We retrospectively collected data on all patients with cancer that were hospitalized due to COVID-19-related symptoms at Uppsala University Hospital and Karolinska University Hospital between 1 March and 31 August 2020. The primary endpoint was COVID-19-related death and the secondary endpoint was to describe COVID-19 severity, defined as symptom severity (grades 0-4) and length of stay (LOS) at the university hospitals.

Results: In total, 193 patients were included among which 31% died due to COVID-19 and 8% died of other causes. In a multivariable analysis, older age >70 (OR 3.6; 95% CI [1.8-7.3], p < 0.001) and male gender (OR 2.8 [1.4-5.8], p = 0.005) were factors associated with higher likelihood of COVID-19-related death. Several comorbidities ≥2 (OR 5.4 [2.0-14.3], p = 0.001) was independently associated with COVID-19 severity. Treatment with chemotherapy within 90 days prior to COVID-19 diagnosis were not associated with COVID-19-related death or severity.

Conclusion: Factors associated with higher likelihood of COVID-19-related death were older age and male gender. More severe COVID-19 symptoms were seen in patients with multiple comorbidities. We did not see any associations between COVID-19-related death or severity and recent treatment including chemotherapy. In summary, this supports a thorough assessment regarding potential risks with COVID-19 infection in patients with cancer, with a combination of individual risk factors in addition to cancer treatments.

Keywords: COVID-19; Cancer; chemotherapy; death; mortality.

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