[Delta of neutrophil lymphocyte index and mortality in covid-19 disease].

Background: Acute respiratory distress syndrome, due to SARS-CoV-2, is a worldwide health problem. The neutrophil-lymphocyte index allows risk stratification in patients with severe and poor prognostic data, since it reflects the inflammatory state.

Objective: To determine whether the Neutrophil-Lymphocyte Index delta predicts mortality in patients with COVID-19.