Table 7 Receiver operating characteristic (ROC) curve analysis for prediction of complications

Cutoff

> 9

> 3

> 5.1

> 780

> 17.4

AUC

0.863

0.786

0.909

0.730

0.959

95% CI

0.779–0.924

0.692–0.862

0.835–0.958

0.632–0.815

0.899–0.988

P value

< 0.001*

< 0.001*

< 0.001*

< 0.001*

< 0.001*

Sensitivity

70.37

74.07

74.07

55.56

77.78

Specificity

86.11

65.28

90.28

83.33

98.61

PPV

65.5

44.4

74.1

55.6

95.5

NPV

88.6

87

90.3

83.3

92.2

Accuracy

81.8

67.7

85.9

75.8

92.9