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Table 2 Positive and negative likelihood ratios and pre- and posttest odds for mortality, given a positive extravascular lung water test

From: Extravascular lung water index improves the diagnostic accuracy of lung injury in patients with shock

 

EVLW alone

Combined with ALI

Combined with ARDS

Combined with sLI

EVLW

index

LR+

LR-

Pretest

odds

Posttest

odds

LR+

LR-

Pretest

odds

Posttest

odds

LR+

LR-

Pretest

odds

Posttest

odds

LR+

LR-

Pretest

odds

Posttest

odds

EVLW/ABW

1.83

0.55

0.38

0.69

2.27

0.70

0.38

0.86

1.89

0.79

0.38

0.71

4.40

0.70

0.38

1.66

EVLW/PBW

1.41

0.72

0.38

0.53

1.51

0.88

0.38

0.57

1.76

0.85

0.38

0.67

1.98

0.88

0.38

0.75

EVLW/PBV

2.11

0.59

0.38

0.80

1.76

0.85

0.38

0.67

2.11

0.86

0.38

0.80

3.52

0.78

0.38

1.33

  1. ABW: actual body weight; ALI: acute lung injury; ARDS: acute respiratory distress syndrome; EVLW: extravascular lung water; LR-: negative likelihood ratio; LR+: positive likelihood ratio; PBV: pulmonary blood volume; PBW: predicted body weight; sLI: severe lung injury. A positive EVLW test was defined as EVLW/ABW ratio > 10 ml/kg, EVLW/PBW ratio > 10 ml/kg and EVLW/PBV ratio > 1.5.