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Table 2 Characteristics of patients

From: Simple modification of trauma mechanism alarm criteria published for the TraumaNetwork DGU® may significantly improve overtriage – a cross sectional study

  cases in the ER cases not in the ER
  ISS ≤ 15 ISS > 15   ISS > 15  
(n = 1378) (n = 1052) (n = 326) (n = 80)
Mean ± SD Mean ± SD Mean ± SD p Mean ± SD p
N (%) N (%) N (%) N (%)
male 879 (63.8%) 658 (62.5%) 221 (67.8%) 0.09 48 (60%) 0.20
female 499 (36.2%) 394 (37.5%) 105 (32.2%) 32 (40%)
age at accident (years) 48.3 ± 21.2 45.7 ± 20.4 56.6 ± 21.6 < 0.001 68.7 ± 19.1 < 0.001
ISS 9.7 ± 9.6 5.3 ± 4.3 23.9 ± 7.9 < 0.001 20.3 ± 4.5 < 0.001
NISS 12.5 ± 12.3 7.1 ± 6.5 29.7 ± 11 < 0.001 25.4 ± 7.2 0.001
AIS1 1.3 ± 1.5 0.9 ± 1 2.7 ± 1.8 < 0.001 3.7 ± 1.3 < 0.001
AIS2 0.2 ± 0.6 0.1 ± 0.5 0.5 ± 0.9 < 0.001 0.5 ± 0.9 0.99
AIS3 0.8 ± 1.3 0.4 ± 0.9 1.9 ± 1.6 < 0.001 0.6 ± 1.2 < 0.001
AIS4 0.4 ± 0.9 0.2 ± 0.6 0.9 ± 1.3 < 0.001 0.2 ± 0.6 < 0.001
AIS5 0.8 ± 1.2 0.5 ± 1 1.4 ± 1.4 < 0.001 0.7 ± 1.1 < 0.001
AIS6 0.6 ± 0.6 0.6 ± 0.5 0.4 ± 0.7 < 0.001 0.3 ± 0.4 0.03
1st GCS 13.3 ± 3.4 14 ± 2.5 11.1 ± 4.7 < 0.001 13.8 ± 2.1 < 0.001
lowest SaO2 (%) 94.1 ± 10.1 94.5 ± 10.2 92.9 ± 9.6 0.06 93.3 ± 5.3 0.85
lowest systolic BP (mmHg) 133 ± 28 134.6 ± 27 128.2 ± 30.5 0.004 136 ± 21.7 0.20
RISC (%) 7.7 ± 16.8 3.1 ± 5.9 22.4 ± 28.3 < 0.001 22.8 ± 20 0.90
hospital mortality 96 (7%) 17 (1.6%) 79 (24.2%) < 0.001 7 (8.8%) 0.002
  1. emergency room, ER; (new) injury severity score, (N)ISS; abbreviated injury scale, AIS (AIS 1: head & neck; etc.); blood pressure, BP; blood oxygen saturation, SaO2; Revised Injury Severity Score, RISC; Glasgow Coma Scale, GCS