| Model 1 | Model 2 | ||||
---|---|---|---|---|---|---|
 | OR | 95% CI | P -value | OR | 95% CI | P -value |
Pre-hospital management | Â | Â | Â | Â | Â | Â |
   Non-SMUR | 1 | - |  | 1 | - |  |
   SMUR | 0.55 | 0.32 to 0.94 | 0.030 | 0.62 | 0.35 to 1.10 | 0.10 |
Age (for 10 y variation) | 1.48 | 1.38 to 1.59 | <0.001 | 1.48 | 1.38 to 1.59 | <0.001 |
Sex | Â | Â | Â | Â | Â | Â |
   Female | 1 | - |  | 1 | - |  |
   Male | 0.95 | 0.71 to 1.27 | 0.75 | 0.95 | 0.71 to 1.27 | 0.72 |
Injury Severity score | Â | Â | Â | Â | Â | Â |
   ≤24 | 1 | - |  | 1 | - |  |
   25 to 34 | 3.18 | 2.24 to 4.51 | <0.001 | 3.26 | 2.29 to 4.63 | <0.001 |
   ≥ 35 | 5.96 | 4.09 to 8.67 | <0.001 | 6.01 | 4.13 to 8.77 | <0.001 |
Systolic arterial blood pressure (mmHg) | Â | Â | Â | Â | Â | Â |
   <90 | 1.60 | 1.10 to 2.32 | 0.015 | 1.60 | 1.10 to 2.34 | 0.014 |
   90 to 109 | 1.29 | 0.91 to 1.81 | 0.15 | 1.28 | 0.91 to 1.81 | 0.16 |
   ≥110 | 1 | - |  | 1 | - |  |
   SpO2 (%) |  |  |  |  |  |  |
   <90 | 1.44 | 1.02 to 2.03 | 0.036 | 1.46 | 1.04 to 2.06 | 0.029 |
   90 to 95.9 | 0.84 | 0.60 to 1.17 | 0.30 | 0.82 | 0.58 to 1.15 | 0.25 |
   ≥96 | 1 | - |  | 1 | - |  |
Respiratory rate (min-1) | Â | Â | Â | Â | Â | Â |
   <10 | 1.23 | 0.43 to 3.51 | 0.70 | 1.18 | 0.41 to 3.37 | 0.76 |
   10 to 29 | 0.96 | 0.56 to 1.66 | 0.89 | 0.96 | 0.55 to 1.66 | 0.89 |
   ≥30 | 1 | - |  | 1 | - |  |
GCS | Â | Â | Â | Â | Â | Â |
   ≤7 | 8.52 | 6.14 to 11.8 | <0.001 | 8.70 | 6.296 to 12.1 | <0.001 |
   8 to 13 | 2.52 | 1.72 to 3.68 | <0.001 | 2.51 | 1.72 to 3.67 | <0.001 |
   ≥14 | 1 | - |  | 1 | - |  |
Delay to hospital admission (h) | Â | Â | Â | Â | Â | Â |
   <1 | Not entered | - |  | 1.65 | 1.00 to 2.71 | 0.048 |
   1 to 3 |  | - |  | 1.20 | 0.82 to 1.76 | 0.35 |
   ≥3 |  | - |  | 1 | - |  |