Clinical Research Directory

Inclusion Criteria: 1. Age 18 years or older at the earliest qualified assessment. 2. Acute physical injury caused by a blunt or penetrating mechanism. 3. Trauma or an immediate consequence of trauma was the principal reason for the first qualifying intensive care unit admission. 4. The first qualifying intensive care unit admission occurred from 1 January 2018 through 31 December 2025, inclusive. 5. The intensive care unit admission belonged to the continuous acute hospitalization following the index injury. Exclusion Criteria: 1. Age younger than 18 years. 2. No physical admission to the participating intensive care unit, including death before ICU admission. 3. Isolated burn, isolated inhalation injury, drowning, hanging, asphyxia, poisoning, or isolated thermal, electrical, or chemical injury without qualifying blunt or penetrating trauma. 4. ICU admission for a medical condition when trauma was incidental and not the principal indication for critical care. 5. Elective, reconstructive, rehabilitation, or late readmission after discharge from the acute trauma hospitalization. 6. Iatrogenic injury or procedural complication without qualifying external blunt or penetrating trauma. 7. Duplicate record or ICU readmission within the same trauma hospitalization. 8. A later eligible trauma episode in a patient already included during the study period.