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Table 3 Patients’ demographic data

From: Midterm outcome after posterior stabilization of unstable Midthoracic spine fractures in the elderly

Parameter Study population (n = 59) Survivors (n = 38) Non-survivors (n = 21) p-value
Mean Std mean Std mean Std
Age 76.9 6.3 75.3 5.6 79.6 6.8 0.01
Female gender [%] 51 55.3 42.9 0.37
Fracture location 6.9 2.0 6.9 2.1 6.9 1.8 0.99
Classification [OF] 4.1 0.7 4.1 0.7 4.1 0.7 0.93
ASA score 2.5 0.5 2.4 0.8 2.7 0.5 0.02
BMI [kg/m2] 27.0 4.3 27.2 4.3 26.6 4.5 0.63
Trauma mechanism 1.4 1.1 1.5 1.1 1.2 1.0 0.35
Duration surg [min] 142 46.2 134.8 40.8 154.8 53.8 0.16
Stabilized segments 4.3 1.4 4.2 1.6 4.4 1.0 0.46
Min. inv. Approach [%] 54.2 57.9 47.6 0.08
Adjacent injuries [%] 42.4 47.4 33.3 0.30
Thoracic cage inj [%] 22.0 28.9 9.5 0.06
Diabetes mellitus [%] 25.4 28.9 19.0 0.40
Renal insuffic. [%] 30.5 26.3 38.1 0.37
Heart insuffic. [%] 40.7 39.5 26.3 0.36
COPD [%] 13.6 7.9 23.8 0.04
  1. Std Standard deviation; Fracture location: 3: thoracic vertebral body (TVB) 3: 4: TVB 4; 5: TVB 5; 6: TVB 6; 7: TVB 7; 8: TVB; 9: TVB 9; 10: TVB 10; Classification: 1: OF 1; 2: OF 2; 3: OF 3; 4: OF 4; 5: OF 5; ASA:; BMI Body mass index; Trauma mechanism: 0: not memorable; 1: low energy; 2: moderate energy; 3: high energy; surg: surgery; min: minutes; min. Inv. approach: Minimal invasive approach; inj: injury;insuffic.: insufficiency; COPD: Chronic obstructive pulmonary disease
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