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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