Table 2.

Variables of ‘COMPRESS-trial’ dataset. CT = computer tomography; pO2 = oxygen partial pressure; pCO2 = carbon dioxide partial pressure; Hb = hemoglobin

variable	specification
rib fracture	yes no
serial rib fracture	yes no
sternal fracture	yes no
pneumothorax	yes no
hematopneumothorax	yes no
intra-thoracic bleeding	yes no
intra-abdominal bleeding	yes no
How was the injury diagnosed?	routine diagnostic suspicion based diagnostic
Which diagnostics were performed?	CT x-ray ultrasound
pO2 in first blood gas analysis after hospital admission
pCO2 in first blood gas analysis after hospital admission
Hb in first blood gas analysis after hospital admission