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Table 3 Inflammatory parameters. Cut-off values determining mortality, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), accuracy rates

From: Evaluation of the effect of clinical characteristics and intensive care treatment methods on the mortality of covid-19 patients aged 80 years and older

Test Result Variable(s)

Cut-off Value

Sensitivity

Specificity

PPV

NPV

Accuracy Rates

CRP

≥96.5

72.1

58.8

87.8

33.9

69.5

PCT

≥0.31

72.9

52.9

86.4

32.1

70.0

Ferritin

≥338

64.5

60.6

87.3

29

63.4

WBC

≥10,545

54.0

50.0

81.5

21.0

53.2