Table 1.
Characteristics of patients in the two cohorts. Data represent the mean ± standard deviation and numbers (proportions). APACHE: Acute Physiology and Chronic Health Evaluation; AP: arterial pressure; GCS: Glasgow Coma Scale; ISS: Injury Severity Score; MAIS: Maximum Abbreviated Injury Scale in this region; NISS: New ISS; TRISS: Trauma and Injury Severity Score
| Characteristics |
PreSOP (2000–2006) |
SOP (2010–2012) |
Total | P-value |
|---|---|---|---|---|
| N | 131 | 180 | 311 | |
| Age [years] | 75 ± 7 | 77 ± 8 | 76 ± 7 | .046* |
| Gender [% male] | 59% | 59% | 59% | .91‡ |
| MAIS head or neck | 3.02 ± 2.07 | 3.72 ± 1.91 | 3.43 ± 2.00 | .032* |
| MAIS face | 0.45 ± 0.94 | 0.66 ± 1.07 | 0.57 ± 1.02 | .16* |
| MAIS spine | 0.64 ± 1.28 | 0.64 ± 1.20 | 0.64 ± 1.23 | .33* |
| MAIS chest | 1.75 ± 1.76 | 1.51 ± 1.73 | 1.61 ± 1.74 | .28* |
| MAIS abdomen | 0.83 ± 1.56 | 0.37 ± 0.98 | 0.56 ± 1.27 | .007* |
| MAIS pelvis | 0.71 ± 1.29 | 0.63 ± 1.34 | 0.66 ± 1.32 | .48* |
| MAIS extremities | 1.36 ± 1.49 | 1.18 ± 1.45 | 1.25 ± 1.47 | .69* |
| MAIS external | 0.36 ± 0.63 | 0.74 ± 0.88 | 0.59 ± 0.81 | .008* |
| GCS | 7.31 ± 5.32 | 8.18 ± 5.15 | 7.81 ± 5.23 | .39* |
| ISS | 29 ± 12 | 37 ± 24 | 34 ± 20 | .28* |
| NISS | 42 ± 17 | 42 ± 22 | 42 ± 20 | .41* |
| Mean AP [mmHg] | 93 ± 25 | 97 ± 24 | 96 ± 24 | .25* |
| Base excess [mEq/L] | −4.3 ± 5.0 | − 3.5 ± 5.6 | −3.8 ± 5.4 | .64* |
| Lactate [mmol/L] | 3.5 ± 2.8 | 2.3 ± 2.0 | 2.8 ± 2.5 | <.001* |
| Haemoglobin [g/L] | 10.4 ± 4.2 | 11.6 ± 7.8 | 11.2 ± 6.7 | .094* |
| Prothrombin [% normal] | 76 ± 24 | 71 ± 25 | 72 ± 25 | .072* |
| APACHE II score | 21 ± 9 | 18 ± 8 | 20 ± 8 | .034* |
| TRISS | 0.71 ± 0.28 | 0.63 ± 0.39 | 0.66 ± 0.35 | .72* |
* Mann–Whitney U test, ‡Pearsons’s chi-square