TABLE 2.
Hazard Ratios for Mortality of All Covariates Used in the Cox Models
| Covariates | Hazard Ratio (95% CI) |
|---|---|
| Continuous | |
| Age | 1.03 (1.02–1.03) |
| Acute Physiology and Chronic Health Evaluation II Score | 1.08 (1.06–1.09) |
| Number of Noncardiopulmonary comorbidities | 0.92 (0.86–0.98) |
| Categorical | |
| Other race/Ethnicity | 1.23 (0.93–1.62) |
| Female | 1.13 (0.86–1.50) |
| Never smoker | 0.77 (0.51–1.14) |
| Unknown smoking status | 1.87 (1.35–2.60) |
| Cardiopulmonary comorbidities present | 1.00 (0.74–1.35) |
| Nonblunt mechanism of injury | 0.97 (0.73–1.30) |
Hazard ratio (HR) for age accounts for every 1 yr increase. HR for Acute Physiology and Chronic Health Evaluation II score accounts for every one-point increase.