Table 1.
Patient Demographic and Injury Characteristics
| Nonsmokers | Smokers | P | |
|---|---|---|---|
| Number of patients | 319,249 | 38,564 | |
| Mean age (SD) | 39.8 (14.1) | 39.0 (13.2) | <.001 |
| Median age | 40 | 39 | |
| Female (%) | 27.3% | 23.7% | <.001 |
| Race/ethnicity (%) | <.001 | ||
| White | 76.4% | 81.8% | |
| Non-White | 23.6% | 18.2% | |
| Mean # comorbidities (SD) | 0.7 (0.9) | 1.7 (0.9) | <.001 |
| ISS mean (SD) | 16.4 (9.3) | 15.6 (.2) | <.001 |
| Type of injury (%) | <.001 | ||
| Blunt | 89.8% | 89.2% | |
| Penetrating | 10.2% | 10.8% | |
| GCS | <.001 | ||
| 6 | 84.6% | 89.4% | |
| 2–5 | 5.7% | 4.3% | |
| 1 | 9.8% | 6.3% | |
| Hypotension (%) | 3.8% | 3.2% | <.001 |
| Insurance (%) | <.001 | ||
| Private | 36.6% | 26.8% | |
| Public | 17.1% | 23.4% | |
| Self-pay | 22.5% | 27.0% | |
| Other | 23.8% | 22.8% | |
| Mortality | <.001 | ||
| Lived | 95.7% | 98.2% | |
| Died | 4.3% | 1.8% | |
| Major complication | .763 | ||
| No complication | 90.4% | 90.3% | |
| Complication | 9.6% | 9.7% | |
GCS = Glasgow Coma Score (motor); ISS = Injury Severity Score.