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The Ultrasound Journal

Table 2 Test characteristics for the ultrasound measured inferior vena cava to aorta ratio diameter, the ultrasound measured inferior vena cava inspiratory collapse, and physician gestalt

From: The BUDDY (Bedside Ultrasound to Detect Dehydration in Youth) study

Technique (cut point)

AUC (95%CI)

SN (%)

SP (%)

LR+

LR−

IVC/Ao US (0.8)

0.72 (0.53, 0.91)

67

71

2.32

0.47

Inspiratory collapse of IVC US (80%)

0.58 (0.44, 0.72)

83

42

1.43

0.40

Physician gestalt (≥5)

0.61 (0.44, 0.78)

42

65

1.20

0.89

  1. AUC, area under the receiver operating characteristic curve; SN, sensitivity; SP, specificity; LR+, likelihood ratio positive; LR−, likelihood ratio negative; IVC/Ao, inferior vena cava to aorta ratio; IVC, inferior vena cava; US, ultrasound.
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