Table 3.
Logistic Regression Model for Death
| Covariates+ | OR | 95% CI | |
|---|---|---|---|
| Hypotension and Hypoxia Status | Neither hypotension nor Hypoxia | --- | --- |
| Hypotension only | 2.49 | (1.87, 3.32) | |
| Hypoxia only | 3.00 | (2.37, 3.78) | |
| Both conditions | 6.10 | (4.20, 8.86) | |
| Male | No | ||
| Yes | 0.98 | (0.82, 1.17) | |
| Race | Black | --- | --- |
| American Indian/Alaska Nat. | 1.82 | (1.00, 3.32) | |
| Asian | 1.31 | (0.51, 3.35) | |
| White | 1.72 | (1.02, 2.91) | |
| Other | 1.94 | (1.06, 3.56) | |
| Unknown | 2.23 | (0.89, 5.60) | |
| Hispanic | No | --- | --- |
| Yes | 0.73 | (0.56, 0.94) | |
| Unknown | 1.78 | (1.08, 2.93) | |
| Payer | Private | --- | --- |
| AHCCCS/Medicaid | 1.08 | (0.85, 1.37) | |
| Medicare | 1.29 | (0.97, 1.72) | |
| Self Pay | 2.49 | (1.89, 3.29) | |
| Other | 1.18 | (0.79, 1.76) | |
| Unknown | 2.75 | (1.62, 4.66) | |
| Trauma Type | Blunt | --- | --- |
| Penetrating | 4.73 | (3.55, 6.31) | |
| Head Injury Severity Score (ICD) | 1–3 | --- | --- |
| 4 | 1.34 | (0.96, 1.87) | |
| 5–6 | 12.35 | (9.05, 16.85) | |
| Unknown | 5.76 | (2.97, 11.16) | |
| Injury Severity Score (ICD) | 1–14 | --- | --- |
| 16–24 | 3.08 | (1.81, 5.25) | |
| 25+ | 12.93 | (7.82, 21.38) | |
| Inter-facility Transfer | No | --- | --- |
| Yes | 0.62 | (0.50, 0.77) | |
| Unknown | 0.25 | (0.03, 2.02) | |
+
Age was fitted non-parametrically and trauma center was also included (details not shown)