| COVID-19 | coronavirus-2019 |
| SARS-CoV-2 | severe acute respiratory syndrome coronavirus-2 |
| IL-6 | interleukin-6 |
| ICU | intensive care unit |
| NIH | National Institutes of Health |
| MV | mechanical ventilation |
| LOS | length of stay |
| CRRT | continuous renal replacement therapy |
| RD | risk difference |
| WHO-CPS | World Health Organization-Combined Positive Score |
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