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Table 1 Patient characteristics

From: Odontoid fractures: impact of age and comorbidities on surgical decision making

   336 (100%)
Sex Male 186 (55.4)
  Female 150 (44.6)
Age group (years) 0–49 19 (5.7)
  50–59 16 (4.8)
  60–69 49 (14.6)
  70–79 78 (23.2)
  80–89 109 (32.4)
  90+ 65 (19.3)
Pre-injury ASA scorea ASA score of 1 33 (9.8)
  ASA score of 2 89 (26.5)
  ASA score of 3 187 (55.7)
  ASA score of 4 26 (7.7)
  Not available 1 (0.3)
Dependence in daily life Home – independent 220 (65.5)
  Home – with assistance 62 (18.5)
  Institution 53 (15.8)
  Not available 1 (0.3)
Injury mechanism Fall 288 (85.7)
  Motorized vehicle (MV) 16 (4.8)
  Bicycle 15 (4.5)
  Pedestrian hit by MV or bicycle 5 (1.4)
  Other 12 (3.6)
Odontoid fracture Type II 199 (59.2)
  Type III 137 (40.8)
Other spine fractures C1 64 (19.1)
  C0 (occipital condyle) 9 (2.7)
  C3 – Th1 27 (8.1)
  Thoracolumbar 30 (8.9)
Spinal cord injury (SCI) Odontoid fx 13 (3.9)
  Other cervical fx 1 (0.3)
  Thoracolumbar fx 2 (0.6)
Multi-trauma Yes 143 (42.6)
  TBIb - Mild 91 (27.1)
  TBI - Moderate 11 (3.3)
  TBI - Severe 9 (2.7)
  Face 29 (8.6)
  Thoracolumbar fx 30 (8.9)
  Thorax 29 (8.6)
  Abdomen 5 (1.5)
  Pelvic 5 (1.5)
  Extremity 27 (8.0)
  1. aASA American Society of Anesthesiologists
  2. bTBI Traumatic Brain Injury
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