BioMed Research International / 2014 / Article / Tab 4

Research Article

Risk Factors for Chronic Subdural Hematoma after a Minor Head Injury in the Elderly: A Population-Based Study

Table 4

Cox regression for subdural hematoma among patients with minor head injury and controls, by age group.

VariablesAge ≤ 75Age > 75
HR95% CI valueHR95% CI value

Gender
 Female1.00 1.00
 Male1.66 1.20–2.31 0.002 2.25 1.66–3.05 <0.001
Comorbidity
 DM1.24 0.88–1.75 0.221 1.13 0.83–1.55 0.438
 Hypertension0.94 0.65–1.35 0.741 0.88 0.63–1.25 0.476
 Chronic kidney disease0.78 0.39–1.55 0.484 0.51 0.27–0.98 0.042
 Chronic liver disease0.79 0.54–1.16 0.230 0.73 0.49–1.09 0.121
 Rheumatic heart disease1.24 0.45–3.42 0.682 0.92 0.40–2.09 0.839
 Ischemic heart disease0.57 0.39–0.83 0.004 1.21 0.89–1.65 0.224
 Af/AF0.72 0.26–1.98 0.519 0.66 0.32–1.37 0.267
 Heart failure0.94 0.55–1.61 0.815 0.81 0.55–1.19 0.289
 Deep vein thrombosis0.63 0.16–2.56 0.523 0.91 0.34–2.46 0.852
 Hydrocephalus2.04 0.65–6.43 0.223 2.76 1.41–5.41 0.003

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