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The Ultrasound Journal

Table 3 Diagnostic performance of lung ultrasonography, chest radiograph and procalcitonin for the diagnosis of pneumonia

From: Diagnostic accuracy of lung ultrasonography combined with procalcitonin for the diagnosis of pneumonia: a pilot study

 

Sens % (95% CI)

Spec % (95% CI)

PPV % (95% CI)

NPV % (95% CI)

+LR % (95% CI)

−LR (95% CI)

LUS

85.2 (73.8–93)

88 (77.8–94.7)

86.7 (75.4–94)

86.8 (76.3–93.7)

7.14 (3.70–13.79)

0.17 (0.09–0.31)

CXR

60.7 (47.3–72.9)

88.1 (77.8–94.7)

82.2 (67.9–92)

71.1 (60.1–80.5)

5.08 (2.57–10.04)

0.45 (0.32–0.62)

PCT ≥ 0.25

73.8 (61–84.2)

47.8 (35.4–60.3)

56.2 (44.7–67.3)

66.7 (51.6–79.6)

1.41 (1.07–1.86)

0.55 (0.34–0.90)

  1. Sens sensitivity; Spec specificity; PPV positive predictive value; NPV negative predictive value; +LR positive likelihood ratio; −LR negative likelihood Ratio; 95% CI 95% confidence interval; CXR chest X-ray; LUS lung ultrasonography; PCT procalcitonin value express in ng/ml
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