Table 1 Candidate variables for predictor engineering
Variable | Reason for inclusion |
|---|---|
Demographics | |
Age | Included in the FTDS |
Gender | Associated with the reference standard in previous research and interacts with other candidate variables |
Vital signs | |
Glascow Coma Scale, eyes component | Included in the FTDS |
Glascow Coma Scale, motor component | Included in the FTDS |
Glascow Coma Scale, verbal component | Included in the FTDS |
Systolic blood pressure | Included in the FTDS |
Diastolic blood pressure | Expected interactions with other candidate variables (e.g., systolic blood pressure) |
Heart rate | Expected interactions with other candidate variables (e.g., systolic blood pressure) |
Respiratory rate | Included in the FTDS |
Intubation | Direct indication of resource use |
Oxygen saturation | Associated with the reference standard in previous research and expected interactions with other candidate variables |
Mechanism of injury | |
MVA (excl. motorcycles, mopeds, scooters) | Included in the FTDS |
Motorcycle accident | Included in the FTDS |
Moped, scooter accident | |
MVA, pedestrian | Included in the FTDS |
MVA, different | Included in the FTDS |
Gunshot | Expected association with the reference standard and other candidate variables (e.g., penetrating injury) |
Stab wound | Expected association with the reference standard and other candidate variables (e.g., penetrating injury). |
Struck with blunt object | Expected association with the reference standard |
Fall, same level | Included in the FTDS |
Fall, higher level | Included in the FTDS |
Asphyxia | Associated with the reference standard in previous research |
Burns, % of body surface | Associated with the reference standard in previous research |
Injury type | |
Penetrating injury to head, neck, torso, and extremities proximal to elbow and knee | Included in the FTDS |
Flail chest | Included in the FTDS |
Paralysis | Included in the FTDS |
Open or depressed skull fracture | Included in the FTDS |