Skip to main content

Table 1 Efficacy for diagnosing pneumothorax in multiple trauma patients by clinician-performed ultrasonography and radiography

From: Rapid detection of pneumothorax by ultrasonography in patients with multiple trauma

Parameters

Ultrasonography (%)

Radiography (%)

Comparison

 

Value

95%CI

Value

95%CI

P

Sensitivity

86.2 (25/29)

73.7–98.8

27.6 (8/29)

11.3–43.9

<0.001

Specificity

97.2 (103/106)

94.0–100

100 (106/106)

100–100

0.246a

Positive predictive value

89.3 (25/28)

77.8–100

100 (8/8)

100–100

1.0a

Negative predictive value

96.3 (103/107)

92.7–99.9

83.5 (106/127)

77.0–89.9

0.002

False positive ratio

2.8 (3/106)

0–6.0

0 (0/106)

0–0

0.246a

False negative ratio

13.8 (4/29)

1.2–26.3

72.4 (21/29)

56.1–88.7

<0.001

Accuracy

94.8 (128/135)

91.1–98.6

84.4 (114/135)

78.3–90.6

0.005

  1. aFisher's exact test. CI, confidence interval.