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Table 2 Patients stratified according to clot strength

From: Reduced clot strength upon admission, evaluated by thrombelastography (TEG), in trauma patients is independently associated with increased 30-day mortality

 

Low clot strength

n = 17

Normal or high clot strength

n = 72

p-value

Age (years)

43 (32-54)

38 (34-43)

0.38

Males

10 (59%)

49 (68%)

0.47

Blunt trauma

16 (94%)

60 (83%)

0.45

Type of trauma

  

0.66

   Thoracic

1

14

 

   Abdominal

1

6

 

   Extremities

0

4

 

   Cerebral

5

13

 

   Multi trauma

8

29

 

   Other

2

6

 

Injury Severity Score

27 (20-34)

19 (17-22)

0.006

Laboratory analyses

   Hemoglobin (g/dL)

9.7 (8.5-10.7)

11.9 (11.5-12.4)

<0.001

   Platelet count (109/L)

140 (112-168)

214 (196-231)

<0.001

   APTT (seconds)

49 (37-66)

29 (27-30)

<0.001

   INR (arbitrary units)

1.4 (1.3-1.5)

1.2 (1.1-1.2)

<0.001

   Glucose (mmol/L)

10.3 (8.7-12.1)

7.7 (7.2-8.3)

0.001

   Lactate (mmol/L)

3.3 (2.4-4.6)

2.5 (2.1-2.9)

0.11

TEG

   R (minutes)

6.3 (5.2-7.4)

5.2 (4.9-5.5)

0.01

   Angle (degrees)

47 (40-53)

65 (63-67)

0.001

   MA (mm)

39 (34-44)

60 (59-61)

N/A

   Ly30 (%)

0.8 (0.0-1.7)

0.7 (0.5-0.9)

0.58

Transfusions in units

   RBC

6.4 (3.7-11.2)

2.9 (2.2-3.8)

0.02

   FFP

3.6 (1.9-6.6)

2.0 (1.5-2.6)

0.06

   PC

2.3 (1.5-3.6)

1.5 (1.2-1.7)

0.04

Length of stay (days)

4.9 (2.7-8.7)

12.3 (9.6-15.7)

0.002

  1. Data of patients with low clot strength (maximal amplitude < 50 mm) compared to patients with normal or high clot strength (maximal amplitude ≥ 50 mm). Frequencies are stated as count with percentage in parenthesis. Age, laboratory and thrombelastographic (TEG) analyses, blood product transfusions, Injury Severity Score and length of stay are stated as means with 95% Confidence Intervals. Activated partial thromboplastin time (APTT), international normalized ratio (INR), packed red blood cells (RBC), fresh frozen plasma (FFP), platelet concentrates (PC).