Table 10 Receiver operating characteristic (ROC) curve analysis for prediction of mortality

Cutoff

> 7

> 3

> 4.7

> 780

> 17.4

AUC

0.752

0.747

0.852

0.666

0.931

95% CI

0.655–0.834

0.650–0.829

0.767–0.916

0.564–0.757

0.863–0.972

P value

< 0.001*

< 0.001*

< 0.001*

0.024*

< 0.001*

Sensitivity

87.5

81.25

87.5

56.25

81.25

Specificity

62.65

61.45

68.67

78.31

89.16

PPV

31.1

28.9

35

33.3

59.1

NPV

96.3

94.4

96.6

90.3

96.1

Accuracy

66.7

64.6

71.7

74.7

87.9