1 INTRODUCTION
The fight against coronavirus disease (COVID-19) disease continues
globally. All aspects of scientific research on this subject are of
great importance. The clinical picture of COVID-19 in adults ranges from
asymptomatic infection to severe pneumonia that may be associated with
multi-organ failure.1
Several comorbidities have been associated with the clinical course and
severity of the disease as well as mortality in patients with
COVID-19.2 Among these, the most common chronic
systemic diseases (CSD) include hypertension, diabetes mellitus and
coronary artery diseases.3 Patients with cancer are
more susceptible to infections due to additional CSD, poor general
health and immunosuppressive conditions caused by anticancer
treatments.4 Therefore, they have a higher risk of
being infected with SARS-CoV-2 and a poor prognosis.5There are many studies which examine the relationship of cancer and CSD
with COVID-19.6,7 The purpose of our study was to
evaluate patients who had cancer and/or CSD or no comorbidities who
received COVID-19 treatment in our hospital by grouping them in terms of
clinical and laboratory parameters, intensive care requirement and
survival. In addition, it was planned to determine whether there was a
difference between the effects of cancer and CSD on COVID-19, and if
there was a difference, which condition affected patients with COVID-19
more and why.