ARDS 60-day mortality — interactive estimator

Enter ventilator, oxygenation and patient values. IOI is derived from mechanical power ÷ P:F ratio, and a marker is placed in the risk space below.

Mechanical power (IOI numerator)
Ventilation mode
Respiratory ratebreaths/min
Tidal volumemL
Peak inspiratory pressurecmH₂O
Plateau pressurecmH₂O
PEEPcmH₂O
Oxygenation (P:F ratio)
PaO₂
FiO₂
Mechanical power
J/min
P:F ratio
kPa
IOI (derived)
Patient & other predictors
Age at referralyears
Days intubated before referraldays
Lactatemmol/L
PaCO₂
Predicted 60-day mortality
Research use only — not for clinical decisions. Internally developed and internally cross-validated only. The lactate + PaCO₂ pair was selected after screening multiple candidates, so external / temporal validation and optimism correction are required before any clinical use.
IOI = mechanical power ÷ P:F ratio. VCV uses simplified Gattinoni; PCV uses simplified Becher (peak pressure). P:F computed in kPa; Vt taken in mL. The standalone CO₂ term (x_PACO2) uses the same PaCO₂. Marker position = Age/IOI/Days; marker colour = full model score (incl. Lactate + PaCO₂).