| COVID-19 | Coronavirus disease 2019 |
| ICU | Intensive care unit |
| ARDS | Acute respiratory distress syndrome |
| PEEP | Positive end-expiratory pressure |
| CMV | Conventional mechanical ventilation |
| APACHE | Acute physiology and chronic health evaluation |
| SOFA | Sequential organ failure assessment |
| IQR | Interquartile range |
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