| RRT | renal replacement therapy |
| SOFA | sequential organ failure assessment score |
| ICU | intensive care unit |
| LOS | length of stay |
| GCS | Glasgow coma scale |
| OR | odds ratio |
| CI | confidence interval |
| ROC | receiver operating characteristics |
| IQR | interquartile range |
| CRP | c-reactive protein |
| PCT | procalcitonin |
| FiO2 | fraction of inspired oxygen |
| PaO2 | arterial oxygen partial pressure |
| COPD | chronic obstructive pulmonary disease |
| IL | interleukin |
| ARDS | acute respiratory distress syndrome |
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