Introduction: Patients with cancer undergoing active systemic anticancer treatment (chemotherapy, immunotherapy, targeted, or combination therapy) are at greater risk of COVID-19 infection than persons without cancer. In this paper, the authors analyse the spread of the coronavirus among cancer patients undergoing systemic therapy, and the impact of COVID-19 infection on the continuation of cancer treatment and its outcome at one community hospital in a mid-sized city in the south of Poland.
Material and methods: Nasopharyngeal swab was the only collection method used to obtain specimens for testing via real-time reverse-transcriptase polymerase chain reaction (RT-PCR). Only those with positive RT-PCR results were considered as confirmed SARS-CoV-2 cases. We analysed the medical records of patients quarantined in a hospital clinical oncology ward due to confirmed COVID-19 infection in one member of the group. Qualitative measures are presented as the percentage of their occurrence, and these were evaluated with Fisher's test. Differences were considered significant at p < 0.05.
Results: Cancer patients had more frequent confirmed COVID-19 infection than other patients (3.7% vs. 1.2%). Among cancer patients COVID-19 infection was significantly more frequent in women than in men, p = 0.005. The fatality rate was 27.3% in cancer patients undergoing active anticancer therapy, compared to 3% in the general Polish population. Neither heparin nor G-CSF use had any influence on COVID-19 infection.
Conclusions: In this analysis, the only significant negative factor for COVID-19 infection was female sex, RR (95% CI) = 4.5 (1.3-15.8), (p = 0.005), and this was attributable to individual behaviour.
Keywords: COVID-19; cancer patients; cancer treatment; coronavirus pandemic; systemic therapy.
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