Correlation of Neutrophil to Lymphocyte Ratio with Interleukin-10 in Diagnosis and Monitoring of Coronavirus Disease-19 Patients

BACKGROUND: The enforcement of diagnosis and monitoring of therapy success in SARS-Cov-2 infection, which causes COVID-19 disease, necessitates laboratory tests that may assess and identify patients prior to developing critical circumstances requiring additional treatment. The Neutrophil to Lymphocyte Ratio (NLR) and Interleukin-10 (IL-10) testing are two laboratory procedures used.AIM: This study aims to determine the correlation between NLR and Interleukin-10 (IL-10) in diagnosing and monitoring COVID-19 patients.METHODS: An observational analytic cross-sectional design enrolled about 73 COVID-19 patients who met the inclusion criteria and were willing to participate in the study. The levels of NLR and IL-10 were assessed by Sysmex XS-800i Automated Hematology Analyzer and sandwich ELISA methods. Data were analyzed using SPSS version 17 for Windows.RESULTS: A median of NLR values was 4.02 (1.24-47.89), following IL-10 concentration was 1.870 (0.110–33.368) pg/mL. There was a significant difference in NLR values between critical and non-critical categories (p = 0.000), geriatric and non-geriatric groups (p = 0.006), as well as in groups with comorbid and without comorbidities (p = 0.006). Meanwhile, a significant difference in IL-10 levels was only found between critical and non-critical categories (p = 0.000). There was a moderately significant positive correlation between NLR and IL-10 in COVID-19 patients (r = 0.411; p = 0.000).CONCLUSION: There is a significant positive correlation between NLR values and IL-10 levels in COVID-19 patients.