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.
| Variables | Age ≤ 75 | Age > 75 | HR | 95% CI | value | HR | 95% CI | value |
| Gender | | | | | | | Female | 1.00 | | | 1.00 | | | Male | 1.66 | 1.20–2.31 | 0.002 | 2.25 | 1.66–3.05 | <0.001 | Comorbidity | | | | | | | DM | 1.24 | 0.88–1.75 | 0.221 | 1.13 | 0.83–1.55 | 0.438 | Hypertension | 0.94 | 0.65–1.35 | 0.741 | 0.88 | 0.63–1.25 | 0.476 | Chronic kidney disease | 0.78 | 0.39–1.55 | 0.484 | 0.51 | 0.27–0.98 | 0.042 | Chronic liver disease | 0.79 | 0.54–1.16 | 0.230 | 0.73 | 0.49–1.09 | 0.121 | Rheumatic heart disease | 1.24 | 0.45–3.42 | 0.682 | 0.92 | 0.40–2.09 | 0.839 | Ischemic heart disease | 0.57 | 0.39–0.83 | 0.004 | 1.21 | 0.89–1.65 | 0.224 | Af/AF | 0.72 | 0.26–1.98 | 0.519 | 0.66 | 0.32–1.37 | 0.267 | Heart failure | 0.94 | 0.55–1.61 | 0.815 | 0.81 | 0.55–1.19 | 0.289 | Deep vein thrombosis | 0.63 | 0.16–2.56 | 0.523 | 0.91 | 0.34–2.46 | 0.852 | Hydrocephalus | 2.04 | 0.65–6.43 | 0.223 | 2.76 | 1.41–5.41 | 0.003 |
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