| Univariate | Multivariable | ||||
---|---|---|---|---|---|---|
OR | 95% CI | p-value | OR | 95% CI | p-value | |
Age | 1.06 | 1.05–1.07 | < 0.001 | 1.06 | 1.05–1.07 | < 0.001 |
GCS On-scene | 0.91 | 0.85–0.96 | 0.002 | 0.85 | 0.79–0.92 | < 0.001 |
Hypoxia | ||||||
 Not present | 1 |  |  |  |  |  |
 On-scene | 1.31 | 0.84–2.03 | 0.230 | 0.93 | 0.55–1.59 | 0.792 |
Hypotension | ||||||
 Not present | 1 |  |  |  |  |  |
 On-scene | 2.03 | 0.78–5.31 | 0.149 | 3.92 | 1.08–14.23 | 0.038 |
Physician | ||||||
 Not present | 2.03 | 1.44–2.88 | < 0.001 | 1.89 | 1.20–2.94 | 0.005 |
 On-scene | 1 |  |  |  |  |  |