“…Although number of studies have already shown the association of COVID-19 severity with CRP and D-dimer levels in blood, there are limited studies done on Bangladeshi populations (Chowdhury et al, 2020;Khourssaji et al, 2020;Velavan and Meyer, 2020;Cabanillas et al, 2021;Synolaki et al, 2021). In a recent study done by (Ullah et al, 2020), both high D-Dimer (>501 ng/ml) and high CRP (>101 mg/dl) were associated with increased need for upgrade to the ICU and higher requirement for (intermittent mandatory ventilation) IMV on day-7 of hospitalization (Soraya and Ulhaq, 2020;Ullah et al, 2020).…”