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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

From: Implementation of new standard operating procedures for geriatric trauma patients with multiple injuries: a single level I trauma centre study

CharacteristicsPreSOP
(2000–2006)
SOP
(2010–2012)
TotalP-value
N131180311 
Age [years]75 ± 777 ± 876 ± 7.046*
Gender [% male]59%59%59%.91
MAIS head or neck3.02 ± 2.073.72 ± 1.913.43 ± 2.00.032*
MAIS face0.45 ± 0.940.66 ± 1.070.57 ± 1.02.16*
MAIS spine0.64 ± 1.280.64 ± 1.200.64 ± 1.23.33*
MAIS chest1.75 ± 1.761.51 ± 1.731.61 ± 1.74.28*
MAIS abdomen0.83 ± 1.560.37 ± 0.980.56 ± 1.27.007*
MAIS pelvis0.71 ± 1.290.63 ± 1.340.66 ± 1.32.48*
MAIS extremities1.36 ± 1.491.18 ± 1.451.25 ± 1.47.69*
MAIS external0.36 ± 0.630.74 ± 0.880.59 ± 0.81.008*
GCS7.31 ± 5.328.18 ± 5.157.81 ± 5.23.39*
ISS29 ± 1237 ± 2434 ± 20.28*
NISS42 ± 1742 ± 2242 ± 20.41*
Mean AP [mmHg]93 ± 2597 ± 2496 ± 24.25*
Base excess [mEq/L]−4.3 ± 5.0− 3.5 ± 5.6−3.8 ± 5.4.64*
Lactate [mmol/L]3.5 ± 2.82.3 ± 2.02.8 ± 2.5<.001*
Haemoglobin [g/L]10.4 ± 4.211.6 ± 7.811.2 ± 6.7.094*
Prothrombin [% normal]76 ± 2471 ± 2572 ± 25.072*
APACHE II score21 ± 918 ± 820 ± 8.034*
TRISS0.71 ± 0.280.63 ± 0.390.66 ± 0.35.72*
  1. * Mann–Whitney U test, Pearsons’s chi-square