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Table 2 Shock-related index between patients with and without massive transfusion in elderly trauma patients

From: The impact of age and receipt antihypertensives to systolic blood pressure and shock index at injury scene and in the emergency department to predict massive transfusion in trauma patients

 

Overall elderly

(n = 1949)

Non–MT

(n = 1893)

MT

(n = 56)

P value

Age (IQR), yr

76.0 (70.0–81.0)

76.0 (70.0–81.0)

76.0 (70.0–82.5)

0.766

Male sex, n (%)

1002 (51.4)

964 (50.9)

38 (67.9)

0.012

Taking antihypertensives, n(%)

998 (51.2)

979 (51.7)

19 (33.9)

0.009

Shock-related Index categories

  At injury scene (prehospital)

  SBP (IQR), mmHg

140.0 (121.0–160.0)

140.0 (120.0–160.0)

100.0 (100.0–120.0)

< 0.001

  SI (IQR)

0.59 (0.51–0.71)

0.59 (0.51–0.69)

0.83 (0.65–0.90)

0.001

 SBP category, n (%)

< 0.001

  > 110 mmHg

1768 (90.6)

1742 (92.0)

27 (47.4)

 

  90–110 mmHg

149 (7.7)

125 (6.6)

24 (42.1)

 

  < 90 mmHg

33 (1.6)

27 (1.4)

6 (10.5)

 

 SI category, n (%)

< 0.001

  < 0.7

1443 (73.9)

1422 (75.1)

21 (36.8)

 

  0.7–1.0

420 (21.7)

394 (20.8)

27 (47.4)

 

  > 1.0

86 (4.4)

78 (4.1)

9 (15.8)

 

At  ED arrival

  SBP (IQR), mmHg

147.0 (124.0–165.0)

151.0 (129.0–171.0)

88.0 (80.0–103.0)

< 0.001

  SI (IQR)

0.57 (0.47–0.69)

0.55 (0.46–0.67)

0.94 (0.87–1.06)

< 0.001

 SBP category, n (%)

< 0.001

  > 110 mmHg

1692 (86.8)

1670 (88.2)

22 (38.9)

 

  90–110 mmHg

172 (8.8)

168 (8.9)

4 (7.4)

 

  < 90 mmHg

85 (4.3)

55 (2.9)

30 (53.7)

 

 SI category, n (%)

< 0.001

  < 0.7

1468 (75.4)

1459 (77.1)

9 (16.7)

 

  0.7–1.0

372 (19.1)

354 (18.7)

18 (31.5)

 

  > 1.0

109 (5.5)

80 (4.2)

29 (51.9)

 

 GCS, n (%)

< 0.001

  > 12

1778 (91.3)

1750 (92.3)

28 (50.0)

 

  9–12

68 (3.5)

62 (3.3)

6 (11.4)

 

  < 9

103 (5.1)

81 (4.3)

22 (38.6)

< 0.001

 Injury severity score, n (%)

< 0.001

   < 16

1482 (76.0)

1473 (77.8)

9 (16.1)

 

  16–24

292 (15.0)

267 (14.1)

25 (44.6)

 

   > 24

175 (9.0)

153 (8.1)

22 (39.3)

 

 30-day mortality, n (%)

149 (7.6)

121 (6.4)

28 (50.0)

< 0.001

  1. IQR denotes interquartile range
  2. ED emergency department, GCS glasgow coma scale, SBP systolic blood pressure, SI shock index