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Table 4 Adjusted HRs for patients admitted with TBI

From: Higher mortality rates among the elderly with mild traumatic brain injury: a nationwide cohort study

Variables Hazard ratio 95% confidence interval P-value
Mild TBI 1.70 1.52—1.91 <0.001
Male 1.32 1.28—1.36 <0.001
Patient age 1.097 1.095—1.100 <0.001
Socioeconomic status    
  Low 1 -- --
  Moderate 0.29 0.28—0.30 <0.001
  High 0.55 0.43—0.70 <0.001
Urbanization level    
  Urban 1 -- --
  Suburban 1.20 1.16—1.26 0.014
  Rural 1.86 1.78—1.94 0.027
Diabetes 1.55 1.49—1.60 <0.001
Hypertension 1.00 0.97—1.04 0.951
History of alcohol intoxication 2.05 1.73—2.42 0.766
Ischemic stroke 1.30 1.26—1.35 <0.001
Intracranial hemorrhage 1.91 1.74—2.09 <0.001
Malignancies 1.99 1.90—2.10 <0.001
Dementia 0.67 0.65—0.70 <0.001
Charlson comorbidity index score    
  0 1 -- --
  1 1.00 0.95—1.05 0.420
  ≥ 2 1.46 1.39—1.53 <0.001