ABSTRACT
Background: COVID-19 is still going on with lots of uncertainties. There is a need for early and effective marker for prognostication of COVID-19 patients. Coagulation dysfunction and increased D-dimer levels are seen in this disease. Thus, present study was aimed to compare D-dimer value in relation to disease severity and disease mortality, and to evaluate prognostic significance of D-dimer. Method(s): All symptomatic SARS-CoV-2 RT-PCR confirmed COVID-19 patients admitted in Hospital from March 31, 2021, to May 31, 2021 were evaluated and clinical, demographical and laboratory findings were collected and analysed. According to disease severity patients were grouped and death events and D-dimer value were assessed. Optimal D-dimer cut off point in all groups were evaluated. Result(s): 388 patients were included in the study out of which 142 (36.5%) died during hospital stay. Mean D-dimer value in mild disease was 1.17+/-0.21, moderate disease was 1.47+/-0.17 and in severe disease was 2.92+/-0.23 FEUmicrog/ml. Mean D-dimer value in non-survivors were significantly (P<0.001) different and higher (59.3%) as compared to survivors. ROC curve analysis showed a prognostic value of D-dimer in mild (AUC=0.755, Z=3.30, P=0.001), moderate (AUC=0.762, Z=4.65, P<0.001) and severe (AUC=0.694, Z=5.08, P<0.001) patients. Optimal cut off of D-dimer between survivor and non survivors was >0.78 in mild cases, >1.05 in moderate patients and >2.11 in severe cases. Conclusion(s): Mean D-dimer value showing increasing trend with increase disease severity and prognostic significance was found highest in moderate patients followed by mild patients and least in severe patients in terms of mortality.Copyright © 2023, Dr Yashwant Research Labs Pvt Ltd. All rights reserved.