| Trauma centre | Overall, adjusted† mortality rate (95% CI) | Patient subgroup, adjusted† mortality rate (95% CI) | ||||
|---|---|---|---|---|---|---|
| Shock | Penetrating truncal injury | Blunt multisystem injury | Older (≥ 65 yr) | Isolated severe TBI | ||
| 1 | 0.72 (0.60–0.87) | 0.81 (0.60–1.09) | 1.25 (0.83–1.89) | 0.74 (0.56–0.98) | 0.72 (0.54–0.96) | 0.46 (0.33–0.64) |
| 2 | 0.87 (0.69–1.12) | 0.91 (0.63–1.30) | 1.00 (0.58–1.73) | 0.74 (0.47–1.16) | 0.58 (0.39–0.85) | 0.73 (0.49–1.10) |
| 3 | 0.87 (0.70–1.08) | 0.99 (0.70–1.41) | 0.84 (0.49–1.44) | 1.20 (0.83–1.75) | 0.95 (0.69–1.29) | 1.05 (0.74–1.50) |
| 4 | 0.87 (0.69–1.01) | 1.09 (0.76–1.55) | 0.98 (0.57–1.68) | 0.81 (0.54–1.21) | 0.84 (0.60–1.18) | 0.82 (0.56–1.19) |
| 5 | 0.89 (0.73–1.07) | 1.05 (0.77–1.43) | 0.90 (0.58–1.39) | 0.79 (0.58–1.07) | 0.84 (0.63–1.12) | 0.79 (0.58–1.09) |
| 6 | 1.18 (0.98–1.43) | 1.14 (0.82–1.57) | 1.16 (0.70–1.93) | 1.18 (0.87–1.60) | 1.19 (0.90–1.56) | 1.43 (1.05–1.94) |
| 7 | 1.17 (0.97–1.41) | 1.08 (0.79–1.48) | 1.14 (0.69–1.88) | 1.40 (1.04–1.87) | 1.30 (0.98–1.72) | 1.39 (1.01–1.90) |
| 8 | 1.23 (0.99–1.53) | 1.05 (0.75–1.48) | 0.95 (0.55–1.62) | 0.82 (0.57–1.19) | 1.51 (1.11–2.08) | 1.46 (1.02–2.09) |
| 9 | 1.38 (1.14–1.68) | 0.93 (0.67–1.28) | 0.86 (0.51–1.43) | 1.75 (1.29–2.38) | 1.52 (1.14–2.03) | 1.55 (1.11–2.16) |
| Median odds ratio | 1.25 | 1.21 | 1.32 | 1.39 | 1.40 | 1.47 |
Note: CI = confidence interval, TBI = traumatic brain injury. *Light gray shading shows trauma centres with upper limits of the 95% confidence interval for in-hospital mortality rate < 1 (lower than expected mortality, i.e., lower adjusted likelihood of death compared with the other centres). Darker shading shows trauma centres with lower limits of the confidence interval > 1 (significantly higher than expected mortality). †Adjusted for gender, age, mechanism of injury, vital signs on arrival, injury severity and transfer status (as defined in Box 1).