| BI | Barthel Index |
| BMI | Body mass index |
| CRISIS | Cross ICU Searchable Information System |
| HADS | Hospital Anxiety and Depression Scale |
| ICU | Intensive care unit |
| PICS | Post-intensive care syndrome |
| QOL | Quality of life |
| SMQ | Short-Memory Questionnaire |
| SOFA | Sequential organ failure assessment |
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