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Table 3 Patients classified by SI calculated at ED admission and the presence of TBI: traditional vital signs as presented on scene and at ED admission. Continuous variables are presented as mean ± 95% confidence interval; categorical variables are presented as absolute number and percentage
| Class I | Class II | Class III | Class IV | |||||
|---|---|---|---|---|---|---|---|---|
| SI <0.6 | SI ≥0.6 to <1 | SI ≥1 to <1.4 | SI ≥ 1.4 | |||||
| Non-TBI | TBI | Non-TBI | TBI | Non-TBI | TBI | Non-TBI | TBI | |
| Vital signs | ||||||||
| SBP at scene (mmHg; mean ± CI) | 138 ± 0.7 | 141 ± 1.0 | 125 ± 0.5 | 123 ± 0.8 | 107 ± 1.3 | 105 ± 1.9 | 96 ± 2.4 | 95 ± 2.9 |
| SBP at ED (mmHg; mean ± CI) | 149 ± 0.6 | 149 ± 0.7 | 126 ± 0.3 | 123 ± 0.5 | 97 ± 0.7 | 96 ± 0.8 | 71 ± 1.1 | 70 ± 1.1 |
| HR at scene (beats/min; mean ± CI) | 84 ± 0.4 | 80 ± 0.6 | 95 ± 0.3 | 92 ± 0.5 | 106 ± 1.0 | 102 ± 1.6 | 112 ± 2.0 | 108 ± 2.4 |
| HR at ED (beats/min; mean ± CI) | 75 ± 0.3 | 73 ± 0.4 | 92 ± 0.3 | 91 ± 0.4 | 110 ± 0.8 | 109 ± 0.9 | 124 ± 1.4 | 123 ± 1.4 |
| GCS at scene (points; mean ± CI) | 13.9 ± 0.1 | 9.7 ± 0.1 | 13.6 ± 0.1 | 8.8 ± 0.1 | 12.4 ± 0.2 | 7.0 ± 0.2 | 11.2 ± 0.3 | 6.4 ± 0.3 |
| GCS at ED (points; mean ± CI) | 12.5 ± 0.1 | 8.1 ± 0.1 | 11.4 ± 0.1 | 6.7 ± 0.1 | 8.5 ± 0.2 | 4.6 ± 0.2 | 6.2 ± 0.4 | 3.9 ± 0.2 |
| Intubation rate at ED admission (n; %) | 1271 (19) | 2497 (49) | 3396 (27) | 4804 (63) | 954 (49) | 1398 (81) | 528 (68) | 716 (87) |
