The Association of Inflammatory Marker Levels on Severity of Infection and in-Hospital Mortality among Covid-19 Confirmed Patients

ABSTRACT

Intro COVID-19 is a respiratory and systemic disease with varying severity, caused by SARS-CoV-2 virus. The pathophysiology of COVID-19 has been postulated to be due to a release of pro-inflammatory cytokines causing cytokine storm. Several inflammatory markers have been studied to prognosticate the course of the disease but with varying results. Baseline inflammatory marker levels may be helpful in early recognition of disease severity which may translate to early aggressive treatment and better outcomes. The objective of this study is to determine the association of the initial levels of procalcitonin, CRP, LDH, Ferritin and D-Dimer on severity of infection and in-hospital outcomes among COVID-19 confirmed patients admitted at Our Lady of Lourdes Hospital Methods: A total of 238 subjects admitted from March 2020-June 2021 were included. Chart review was done and demographic and laboratory data were obtained. Subjects were categorized by disease severity and outcome. SASTM On Demand was used for data analysis: ordinal logistic regression to determine the association of initial inflammatory marker levels on the severity, while Binomial logistic regression to determined the association on the in-hospital outcome. Null hypothesis was rejected at 0.05-alpha level of significance. Finding(s) The study showed a significant association between LDH and severity of infection (p-value 0.014, Risk ratio 1.002), as well as on mortality (p-value 0.004, Risk ratio 1.003). There was no significant association between procalcitonin and severity of infection but there was significant association between procalcitonin and mortality. No significant association was noted between CRP, Ferritin and D-Dimer with severity of infection nor mortality. Conclusion(s) Patients with higher LDH levels were more at risk of severe and/or critical COVID-19 and in-hospital mortality. There was also significant association in the PCT levels and mortality but not with disease severity. There was no significant association between ferritin, D-DimeCopyright © 2023