The goal of this study was to determine the risk of thrombosis in patients with severe SARSCoV2 infection. Methodology: All patients referred to intensive care units (ICUs) from two centres of an Indian tertiary hospital for acute respiratory distress syndrome (ARDS) owing to COVID19 were included. Medical history, symptoms, biochemical data, and imaging data were all gathered prospectively. To compare the occurrence of thromboembolic events in non-COVID19 ARDS versus COVID19 ARDS patients, propensity score matching was used