Table 5.
ROC curve analysis of ARDS severity, length of ICU stay, FRC, PEEP, ΔP, VT, Cst, MP and EP on poor prognosis in ARDS
| Parameters | Best threshold | Sensitivities | Specificities | AUC | Youden index | F1 score |
|---|---|---|---|---|---|---|
| ARDS severity | 1.500 | 0.667 | 0.817 | 0.790 | 0.484 | 0.630 |
| Length of ICU stay | 12.975 | 0.422 | 0.737 | 0.583 | 0.159 | 0.408 |
| FRC | 26.760 | 0.814 | 0.414 | 0.612 | 0.228 | 0.181 |
| PEEP | 5.950 | 0.637 | 0.562 | 0.595 | 0.199 | 0.469 |
| ΔP | 13.305 | 0.539 | 0.673 | 0.582 | 0.212 | 0.460 |
| VT | 7.820 | 0.500 | 0.681 | 0.579 | 0.181 | 0.315 |
| Cst | 41.455 | 0.745 | 0.514 | 0.606 | 0.259 | 0.202 |
| MP | 22.505 | 0.343 | 0.869 | 0.601 | 0.212 | 0.412 |
| EP | 21.535 | 0.480 | 0.944 | 0.689 | 0.424 | 0.594 |
Note: ARDS: Acute Respiratory Distress Syndrome; ICU: Intensive Care Unit; FRC: Functional Residual Capacity; PEEP: Positive End-Expiratory Pressure; ΔP: Driving Pressure; VT: Tidal Volume; Cst: Static Compliance; MP: Mechanical Power; EP: Elastic Power; AUC: Area Under the Curve; ROC: Receiver Operating Characteristic.