Outcome parameters
Data for the baseline descriptives (such as age and sex), prognostic outcome, comorbidities, medical history, chest computed tomography findings, length of hospitalization, duration of intensive care unit stay, and disease severity were extracted from the hospital records. The complete blood count and serum biochemistry studies included the measurements of mean platelet volume, white blood cell count, platelet count, red cell distribution width, as well as serum levels of glucose, calcium, potassium, sodium, blood urea nitrogen, albumin, alanine aminotransferase (ALT), creatinine, lactate dehydrogenase (LDH), aspartate aminotransferase (AST), D-dimer, ferritin, and C-reactive protein (CRP). The impacts of these variables on the therapeutic outcome in COVID-19 patients were sought.