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Table 1 Clinical characteristics, presentation and outcome by shock index in abdominal trauma patients sustained solid organ injuries

From: Shock index in patients with traumatic solid organ injury as a predictor of massive blood transfusion protocol activation

  Overall (n = 572) SI < 0.8 (n = 283) SI ≥0.8
(n = 289)
P value
Age (mean ± SD) 29.2 ± 13.0 32.4 ± 12.5 26.1 ± 12.9 0.001
Males 509 (89.0%) 263 (92.9%) 246 (85.1%) 0.003
Blunt trauma 543 (94.9%) 264 (93.3%) 279 (96.5%) 0.07 for all
Penetrating injuries 29 (5.1%) 19 (6.7%) 10 (3.5%)
Mechanism of injury
 Motor vehicle crash 365 (77.7%) 170 (73.6%) 195 (81.6%) 0.03 for all
 Fall from height 105 (22.3%) 61 (26.4%) 44 (18.4%)
Pulse pressure ED 46.6 ± 16.6 51.9 ± 15.8 41.3 ± 15.6 0.001
Initial lactate 2.9 (0.6–23.4) 2.48 (0.8–23.4) 3.4 (0.6–22.5) 0.001
Second lactate 3.0 (0.7–80.0) 2.7 (0.7–39.0) 3.2 (0.8–80.0) 0.03
Initial hematocrit 39.6 ± 7.0 41.2 ± 6.0 38.0 ± 7.6 0.001
Second hematocrit 36.6 ± 6. 45 37.9 ± 5.7 35.3 ± 7.0 0.001
GCS ED 12.4 ± 2.6 13.9 ± 1.1 10.9 ± 4.1 0.001
Injury Severity Score 18.7 ± 10.7 15.0 ± 8.1 22.2 ± 11.7 0.001
Abdomen AIS 2.6 ± 0.9 2.4 ± 0.7 2.7 ± 0.9 0.001
TRISS 0.9618 ± 0.0873 0.9822 ± 0.0457 0.9381 ± 0.1143 0.001
  1. Shock Index (SI) = pulse ED / SBP ED; Pulse pressure = SBP ED - DBP ED; GCS: Glasgow Coma score