Table 2.
Number of patients and mortality per time period
| Time period | 1996–1998 | 2003–2005 | 2006–2009 | 2014–2016 |
|---|---|---|---|---|
| Hallmark | Before centralization | After centralization | Optimizing trauma | Mind-set trauma |
| Injury Severity Score (ISS) in level 1 trauma centre (mean) | 9.6 | 12.4 | 13.8 | 12.4 |
| Number of total admitted injured patients in level 1 trauma centre (n/year; mean) | 1401 | 1193 | 863 | 1348 |
| Multitrauma patients in level 1 trauma centre (n/year; mean)a | 156 | 186 | 225 | 358 |
| Mortality in trauma regionb | 2.6% | 2.3% | NA | 1.2% |
| Odds ratio (OR) regional to previous period (corrected for age and ISS) | Reference | 0.84 | NA | NA |
| Mortality in level 1 trauma centreb | 7.9% | 8.5% | 8.2% | 5.2% |
| Odds ratio (OR) level 1 trauma centre to previous period (corrected for age and ISS) | Reference | 0.61 | 0.74 | 0.54 |
| Cause of mortality in level 1 centre | ||||
| Exsanguination | 17% | 9% | 8% | 3% |
| Organ failure | 25% | 18% | 5% | 2% |
| Neurological injuries | 40% | 57% | 68% | 85% |
Data in this table were extracted from the previously published articles. The cited articles were based on the prospective database from the trauma region
NA not available
aMultitrauma was defined as an injury severity score (ISS) > 15
bThe regional mortality rate is based on all trauma-related admissions. Similar, the mortality rate of the level 1 center is based on all patients admitted through the emergency department of that hospital