Table 1

The Lung Injury Prediction Score (LIPS)

Predisposing conditionsLIPS pointsRisk modifiersLIPS points
Shock2Alcohol abuse1
Aspiration2Obesity (BMI >30)1
Pneumonia1.5Diabetes mellitus−1
High-risk surgeryChemotherapy1
 Orthopaedic spine1FiO2 >0.35 or >4 L/min2
 Acute abdomen2
 Cardiac2.5Tachypnoea RR >301.5
 Aortic vascular3.5SPO2 <95%1
High-risk traumaAcidosis (pH <7.35)1.5
 Traumatic brain injury2
 Smoke inhalation2
 Near drowning2
 Lung contusion1.5
 Multiple fractures1.5
  • LIPS discriminated between patients who did and who did not develop acute lung injury (ALI) when a cut-off score of >4 points was used, sensitivity of the score for ALI was 0.69 (95% CI 0.64 to 0.74), specificity 0.78 (95% CI 0.77 to 0.79), positive predictive value 0.18 (0.16 to 0.20) and negative predictive value 0.97 (0.97 to 0.98). Adapted from Gajic, et al.10

  • BMI, body mass index.