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Table 1 Clinical and demographic characteristics at intensive care unit admission

From: The relation between the incidence of hypernatremia and mortality in patients with severe traumatic brain injury

Age (years) 51.8 (23)
Male gender 96 (74%)
Injury Severity Score 30.3 (7.7)
Simplified Acute Physiology Score II Score 49.8 (14.6)
Glasgow Coma Score 3 (3 to 8)
   Motor score 1 (1 to 5)
   1 78 (60.0%)
   2 11 (8.5%)
   3 11 (8.5%)
   4 6 (4.6%)
   5 24 (18.5%)
Absence of pupillary reflex  
   Both 21 (16.2%)
   One 11 (8.5%)
Systolic arterial pressure <90 mmHg 7 (5.4%)
Tracheal intubation  
   Prehospital 105 (81.0%)
   At admission 25 (19.2%)
Hypotension 16 (12.3%)
Diabetes 9 (6.9%)
History of heart disease 21 (16.2%)
History of arterial hypertension 24 (18.5%)
Chronic renal failure 1 (0.8%)
spO2 (pulse oxymetry) (%) 97.3 (5.7%)
Hypoxia 11 (8.5%)
Plasma HCO3 (mmol/l) 21.1 (3.4)
pCO2 (mmHg) 38.9 (7.7)
Midline shift on brain CT 32 (24.6%)
Cerebral edema on brain CT 31 (23.8%)
Cerebral herniation on brain CT 21 (16.2%)
Subarachnoid hemorrhage 62 (47.7%)
Epidural hematoma 19 (14.6%)
Presence of petechial hemorrhages 15 (11.5%)
Subdural hematoma 72 (55.4%)
Cerebral contusion 67 (51.5%)
Obliteration of the third ventricle or basal cisterns 31 (23.8%)
CT classification  
   I 13 (10%)
   II 6 (4.6%)
   III/IV 9 (6.9%)
   V/VI 102 (78.5%)
Urgent neurosurgerya 54 (41.5%)
Polytrauma 78 (60.0%)
Thoracic trauma 89 (68.5%)
Abdominal trauma 25 (29.2%)
  1. Continuous variates presented as mean (standard deviation) or median (range); categorical variates presented as number (percentage). aWithin 4 hours after intensive care unit admission.