High-dose, Short-term Steroid and Low-dose Long-term Steroid Use in ARDS Caused by COVID-19

Inclusion Criteria: * Between June 1, 2020 and February 1, 2021, hospitalized in the General intensive care unit of Biruni University Medical Faculty Hospital with the diagnosis of COVID 19; * patients over 18 years of age; (for the diagnosis of COVID 19; Identification of SARS-CoV-2 by reverse transcription-polymerase chain reaction (RT-PCR) in nasopharyngeal swab or sputum samples and Abnormal lung computed tomography finding (CT) scan finding with \<90% oxygen saturation at rest (bilateral, subpleural, peripheral ground glass opacities) Exclusion Criteria: * Patients with a diagnosis of steroid allergy or developing during treatment; * pregnant or lactating women; * Patients with active malignancy; * Patients taking any immunosuppressive agent.