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Table 1 Patient demographics and mechanism of injury

From: Predictive modeling in pediatric traumatic brain injury using machine learning

  Traumatic brain injury (Cases) N = 39 No traumatic brain injury (Controls) N = 156 p-value
Age mean (SD) 8.11 (4.25) 8.10 (4.21) 0.991
Female (%) 14 (36%) 44 (28%) 0.3472
Primary mechanism    <0.0012
Fall (%) 19 (49%) 110 (70%)  
Road traffic accident (%) 17 (44%) 3 (2%)  
Struck by projectile (%) 0 (0%) 3 (2%)  
Non-accidental injury (%) 2 (5%) 9 (6%)  
Others (%) 1 (2%) 31 (20%)  
Primary mechanism among children ≤ 2 years old (N = 5 vs 20)    0.0122
Fall (%) 3 (60%) 18 (90%)  
Road traffic accident (%) 2 (40%) 0 (0%)  
Struck by projectile (%) 0 (0%) 0 (0%)  
Non-accidental injury (%) 0 (0%) 0 (0%)  
Others (%) 0 (0%) 2 (10%)  
  1. 1Student t-test 2Chi-Square test.