The Importance of neutrophil-lymphocyte ratio, monocyte-lymphocyte ratio, and thrombocyte-lymphocyte ratio in addition to abnormal laboratory parameters in COVID-19 pneumonia

Aim: We aimed to examine the importance of the neutrophil-lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR) and thrombocyte-lymphocyte ratio (TLR) in addition to laboratory parameters in terms of pneumonia between patients with and without pneumonia diagnosed with COVID-19 infection. Materials and Methods: In our retrospective study, 506 patients diagnosed with COVID-19 who were hospitalized and treated between April 2020 and July 2020 were included. While 50.6% (n= 256) of the patients had pneumonia, 49.4% (n= 250) did not have. File informations were scanned; the demographic data, hospitalization and discharge laboratory parameters were recorded. Results: The median age of the patients was 44.5 (16-89) years, 55.5% (n= 281) of them were male. The median age of patients with pneumonia was higher than those without pneumonia, and the frequency of female gender was higher (p