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Table 2 Diagnostic accuracy of 6-zone lung ultrasound

From: Lung ultrasound in a tertiary intensive care unit population: a diagnostic accuracy study

Lung pattern

LU/CT

CT + 

CT -

Sensitivity (95% CI)

Specificity (95% CI)

LR + (95% CI)

LR—(95% CI)

Consolidation

LU + 

118

12

0.76 (0.68 to 0.82)

0.92 (0.87 to 0.96)

9.8 (5.6 to 17.0)

0.26 (0.20 to 0.35)

 

LU-

38

143

    

Interstitial syndrome

LU + 

48

24

0.60 (0.48 to 0.71)

0.69 (0.58 to 0.79)

2.0 (1.3 to 2.9)

0.58 (0.43 to 0.78)

 

LU-

32

54

    

Pneumothorax

LU + 

10

4

0.59 (0.33 to 0.82)

0.97 (0.93 to 0.99)

20.7 (7.3 to 58.9)

0.42 (0.24 to 0.75)

 

LU-

7

137

    

Pleural effusion

LU + 

94

10

0.85 (0.77 to 0.91)

0.77 (0.62 to 0.88)

3.7 (2.1 to 6.4)

0.19 (0.12 to 0.31)

 

LU-

16

33

    
  1. Table depicting primary outcome, i.e., the diagnostic accuracy of a 6-zone lung ultrasound protocol. Two-by-two contingency Tables are displayed for consolidation, interstitial syndrome, pneumothorax and pleural effusion. A positive outcome for each outcome is denoted by a ‘ + ’, whereas a negative outcome is denoted by a ‘- ‘. Diagnostic accuracy parameters are estimated with their respective 95% confidence interval. LU: lung ultrasound; CT: computed tomography; CI: confidence interval; LR + : positive likelihood ratio; LR -: negative likelihood ratio