| AKI | Acute Kidney Injury |
| AUC | Area Under the Curve |
| BMI | Body Mass Index |
| CI | Confidence Interval |
| COVID-19 | Coronavirus Disease 2019 |
| CRP | C-Reactive Protein |
| HF | Heart Failure |
| HFmrEF | Heart Failure with Mildly Reduced Ejection Fraction |
| HFpEF | Heart Failure with Preserved Ejection Fraction |
| HFrEF | Heart Failure with Reduced Ejection Fraction |
| hs-CRP | High-Sensitivity C-Reactive Protein |
| ICU | Intensive Care Unit |
| IL-6 | Interleukin-6 |
| IQR | Interquartile Range |
| NT-proBNP | N-Terminal Pro-B-Type Natriuretic Peptide |
| NYHA | New York Heart Association |
| OR | Odds Ratio |
| PaCO2 | Partial Pressure of Carbon Dioxide |
| PaO2 | Partial Pressure of Oxygen |
| RT-PCR | Reverse Transcription Polymerase Chain Reaction |
| SaO2 | Arterial Oxygen Saturation |
| SOFA | Sequential Organ Failure Assessment |
| SARS-CoV-2 | Severe Acute Respiratory Syndrome Coronavirus 2 |
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