The Lung Injury Prediction Score (LIPS)
| Predisposing conditions | LIPS points | Risk modifiers | LIPS points |
|---|---|---|---|
| Shock | 2 | Alcohol abuse | 1 |
| Aspiration | 2 | Obesity (BMI >30) | 1 |
| Sepsis | 1 | Hypoalbuminaemia | 1 |
| Pneumonia | 1.5 | Diabetes mellitus | −1 |
| High-risk surgery | Chemotherapy | 1 | |
| Orthopaedic spine | 1 | FiO2 >0.35 or >4 L/min | 2 |
| Acute abdomen | 2 | ||
| Cardiac | 2.5 | Tachypnoea RR >30 | 1.5 |
| Aortic vascular | 3.5 | SPO2 <95% | 1 |
| High-risk trauma | Acidosis (pH <7.35) | 1.5 | |
| Traumatic brain injury | 2 | ||
| Smoke inhalation | 2 | ||
| Near drowning | 2 | ||
| Lung contusion | 1.5 | ||
| Multiple fractures | 1.5 |
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.