TABLE 4.
Hazard Ratio (HR) and 95% CI of Covariates for Mortality in the Most Predictive Cox Proportional Hazards Model
| HR | 95% CI | |||
| Lower | Upper | P | ||
| Age | 1.05 | 1.04 | 1.06 | 0.000 |
| Male gender | 1.29 | 1.00 | 1.67 | 0.047 |
| Cervical fracture | 1.21 | 0.88 | 1.66 | 0.245 |
| Thoracic fracture | 0.96 | 0.72 | 1.27 | 0.761 |
| Lumbar fracture | 0.97 | 0.70 | 1.33 | 0.841 |
| Surgical treatment | 0.79 | 0.64 | 0.97 | 0.027 |
| Spinal cord injury | 1.55 | 1.22 | 1.97 | 0.000 |
| Charlson Comorbidity Index | 1.28 | 1.22 | 1.35 | 0.000 |
| Year of admission | 0.96 | 0.95 | 0.98 | 0.000 |
95% CI indicates 95% confidence interval; HR, hazard ratio.