Examination of the relationship between blood values and mortality of Covid-19 positive patients: A retrospective analysis

Abstract

Aim: Many factors affect mortality rates due to COVID-19. COVID-19 causes many changes in patient blood parameters. Therefore, in our study, we aimed to evaluate whether there is a relationship between the analysis of basic laboratory findings of COVID-19 patients admitted to the emergency department and mortality due to COVID-19.

Material-Method: The blood measurement values of the patients admitted to the emergency department with the diagnosis of COVID-19 were evaluated retrospectively. The progress of the patients was examined electronically and recorded as recovery and death. A total of 3965 patients were included in the study, and patients with radiologically positive but negative PCR tests were not included in the study.

Results: A statistically significant difference was found in the levels of leukocytes, lymphocytes, HGB, MPV, Basophils, Neutrophils, CRP, PTZ, INR and paCO₂, whether the patients were healthy or deceased (p<0.05). It was determined that there was no statistically significant difference in Platelet, Eosinophil, ALT, AST, CK and O₂ levels (p>0.05). According to these findings, high Mean Platelet Volume, Leukocyte, Basophil, Neutrophil, CRP and PaCO2 values and low Lymphocyte, Hemoglobin, PTZ and INR values were evaluated as a significant relationship with mortality.

Conclusion: We evaluate that leukocytes, neutrophils and lymphocytes, CRP, clotting times and anemia are important parameters for predicting mortality rates from COVID. It should be known that close follow-up of COVID patients with these parameters will be beneficial.