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Table 4 Accuracy of identifying different ultrasound findings in each segment

From: Accuracy of point-of-care ultrasound examination of the lung in primary care performed by general practitioners: a cross-sectional study

 

A profile

B profile

pulmonary consolidation

pleural effusion

value

95% CI

value

95% CI

value

95% CI

value

95% CI

Sensitivity (%)

97.51

95.98–98.57

87.04

79.21–92.73

100.00

63.06–100.00

83.33

51.59–97.91

Specificity (%)

88.10

81.13–93.18

97.73

96.28–98.72

100.00

99.52–100.00

99.87

99.27–100.00

Positive Likelihood

Ratio (%)

8.19

5.09–13.17

38.30

23.10-63.49

-

-

630.00

87.42-4540.08

Negative Likelihood

Ratio (%)

0.03

0.02–0.05

0.13

0.08–0.22

0.00

-

0.1

0.05–0.59

Positive Predictive

Value (%)

97.66

96.29–98.53

86.24

79.08–91.22

100.00

-

90.91

58.12–98.63

Negative Predictive

Value (%)

87.40

80.98–91.87

97.88

96.58–98.69

100.00

-

99.74

99.07–99.93

Accuracy (%)

95.96

94.32–97.24

96.22

94.62–97.46

100.00

99.52–100.00

99.61

98.86–99.92

kappa measurement of agreement (κ ± SE)

0.853 ± 0.026

0.844 ± 0.028

1.000 ± 0.000

0.868 ± 0.076