Table 8 ROC curve analysis of severe and non-severe COVID-19 markers.

From: A predictive model to explore risk factors for severe COVID-19

Variables

AUC

Cut-off

Sensitivity, %

Specificity, %

95% CI

Lower limit

Upper limit

NLR

0.710

9.17

61.8

76.2

0.652

0.767

LDH

0.809

230.50

78.9

73.5

0.761

0.856

RR

0.772

21.50

60.2

86.4

0.716

0.827

ADA

0.620

13.35

62.6

56.5

0.559

0.681

Age

0.621

69.50

83.7

36.8

0.561

0.682

LDH + NLR

0.817

74.8

79.4

0.770

0.864

LDH + RR

0.814

78.9

74.9

0.767

0.861

LDH + NLR + RR

0.823

76.4

78.9

0.777

0.869