Prehospital phase |
 Severity of injury |
  Head injury |
  Spinal cord injury |
  Shock |
 Extremes of age |
 Wet clothing |
 General anesthesia and prehospital intubation |
 Suspected medical conditions |
  Thyroid disease, adrenal disease, diabetes, cardiac dysfunction, hepatic disease, malnutrition, autonomic nervous system dysfunction |
Hospital phase |
 Exposure |
 Cold intravenous fluids and blood products |
 Burns |
 General anesthesia |
 Epidural and spinal anesthesia |
Observation phase |
 Size of surgery |
 General anesthesia >3 h |
 Intravenous crystalloids, blood products |
 SAPS II scores |