Table 3.
Patient-level and hospital-level predictors of MRI use in obtunded, adult trauma patients
| OR (95% CI) | P value | |
| Age | ||
| 18–24 | (Ref) | |
| 25–34 | 1.12 (0.982 to 1.273) | 0.092 |
| 35–44 | 1.03 (0.902 to 1.186) | 0.625 |
| 45–54 | 1.00 (0.867 to 1.152) | 0.992 |
| 55–64 | 1.00 (0.849 to 1.171) | 0.969 |
| 65–74 | 0.83 (0.685 to 0.994) | 0.043 |
| 75–84 | 0.62 (0.483 to 0.792) | <0.01 |
| 85+ | 0.76 (0.545 to 1.055) | 0.101 |
| Sex | ||
| Female | (Ref) | 0.060 |
| Male | 0.91 (0.826 to 1.004) | |
| Race | ||
| White | (Ref) | |
| Black | 1.00 (0.811 to 1.236) | 0.988 |
| Hispanic | 0.79 (0.590 to 1.044) | 0.096 |
| Other | 0.87 (0.645 to 1.174) | 0.362 |
| Insurance | ||
| No | (Ref) | 0.942 |
| Yes | 1.01 (0.778 to 1.310) | |
| Injury Severity Score | ||
| 25–27 | (Ref) | |
| 16–24 | 0.96 (0.692 to 1.321) | 0.785 |
| <16 | 0.93 (0.782 to 1.107) | 0.415 |
| Mechanism | ||
| Motor vehicle crash | (Ref) | |
| Fall | 0.57 (0.494 to 0.658) | <0.01 |
| Pedestrian | 0.93 (0.702 to 1.226) | 0.599 |
| Struck-by | 0.64 (0.526 to 0.785) | <0.01 |
| Other | 0.85 (0.691 to 1.046) | 0.126 |
| Type of hospital | ||
| For profit | (Ref) | |
| Non-profit | 1.15 (0.464 to 2.834) | 0.767 |
| Teaching status | ||
| University | (Ref) | |
| Community | 2.08 (1.192 to 3.637) | 0.010 |
| Non-teaching | 2.75 (1.233 to 6.133) | 0.013 |
| Trauma center level | ||
| Level 1 | (Ref) | |
| Level 2 | 0.47 (0.281 to 0.801) | 0.005 |
| Geographic region | ||
| Northeast | (Ref) | |
| Midwest | 0.29 (0.16 to 0.51) | <0.01 |
| South | 0.22 (0.12 to 0.38) | <0.01 |
| West | 0.16 (0.08 to 0.31) | <0.01 |