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Table 3 ROC curve cut-off value for severe cases using CT-SSS and LDH

From: Comparative evaluation of semi-quantitative CT-severity scoring versus serum lactate dehydrogenase as prognostic biomarkers for disease severity and clinical outcome of COVID-19 patients

  Area under curve P value 95% confidence interval Cut-off value Sensitivity (%) Specificity (%) PPV (%) NPV (%) Accuracy (%)
Lower bound Upper bound
CT-severity scoring system (CT-SSS) 0.979 < 0.001 0.947 1.010 12.5 92.9 98.7 97.50 96.30 96.69
LDH 0.832 < 0.001 0.747 0.917 386 78.6 82.3 70.21 87.84 80.99