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Table 3 Accuracy of prediction of regional LUSV score for non-focal ARDS morphology, by non-parametric receiver operating characteristic (ROC) analysis in the training set

From: Clinical performance of lung ultrasound in predicting ARDS morphology

LUSV

Sensitivity (%)

Specificity (%)

Correctly classified (%)

LR+ 

LR−

 ≥ 0

100.00

0.00

80.00

1.0000

 

 ≥ 1

95.00

40.00

84.00

1.5833

0.1250

 ≥ 3

95.00

100.00

96.00

 

0.0500

 ≥ 4

85.00

100.00

88.00

 

0.1500

 ≥ 6

75.00

100.00

80.00

 

0.2500

 ≥ 7

40.00

100.00

52.00

 

0.6000

 ≥ 8

35.00

100.00

48.00

 

0.6500

 ≥ 9

15.00

100.00

32.00

 

0.8500

 > 9

0.00

100.00

20.00

 

1.0000

Observations (n)

25, training set

    

ROC area (SE; 95% CI)

0.9600 (0.0405; 0.88069–1.0000)

    
  1. LUS: lung ultrasound score; LR: likelihood ratio; ROC: receiver-operating characteristics curve