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Table 3 Trends in the products transfused during massive transfusion within the first 2 days of admission

From: Trends in massive transfusion practice for trauma in Japan from 2011 to 2020: a nationwide inpatient database study

Procedures*

Calendar year

P for trend

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

RBCs, unit, mean

32.1

31.3

32.1

30.5

31.6

31.7

32.7

31.9

32.8

31.8

0.33

FFP, unit, mean

26.4

26.6

27.7

27.3

29.4

31.4

32.8

33.1

35.4

34.7

< 0.001

Platelets, unit, mean

22.2

23.1

24.2

24.1

26.3

27.0

27.2

25.5

26.3

25.0

0.040

FFP-to-RBC ratio, median

0.77

0.83

0.83

0.86

0.90

1.00

1.00

1.00

1.00

1.08

< 0.001

Platelet-to-RBC ratio, median

0.71

0.77

0.77

0.77

0.83

0.83

0.83

0.79

0.83

0.78

0.060

Crystalloid, L, median

13.7

13.8

13.1

13.6

13.2

13.2

13.1

13.3

12.2

12.5

0.031

Tranexamic acid, %

44.0

48.7

52.3

54.2

62.2

62.6

64.8

67.5

65.3

73.6

< 0.001

Fibrinogen concentrate, %

1.3

2.7

5.3

3.4

4.4

4.1

5.4

5.6

8.2

12.1

< 0.001

Recombinant factor VIIa, %

0.6

1.7

1.7

1.2

0.7

0.9

0.8

0.4

0.6

0.8

0.087

Cryoprecipitate, %

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

10.4

< 0.001

  1. RBC: red blood cell; IQR: interquartile range; FFP: fresh frozen plasma
  2. *Massive transfusion-related procedures were evaluated within the first 2 days of admission