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Table 1 Patient characteristics in the weighted and unweighted cohorts in the study group

From: Association between tranexamic acid administration and mortality based on the trauma phenotype: a retrospective analysis of a nationwide trauma registry in Japan

Variable

Unweighted cohort

Weighted cohort

 

TXA non-treated (n = 45,657)

TXA treated (n = 8046)

ASMD

TXA non-treated (n = 54,271)

TXA treated (n = 48,423)

ASMD

Demographics

Age, mean (years)

62.6

60.0

0.111

62.0

60.0

0.090

Male sex (%)

59.5

68.5

0.190

61.1

65.9

0.100

Number of comorbidities

0.6

0.5

0.092

0.57

0.49

0.078

Vital signs

Respiratory rate, mean (/min)

20

22

0.242

21

21

0.056

Heart rate, mean (bpm)

85

90

0.247

86

87

0.022

Systolic blood pressure, mean (mmHg)

142

136

0.166

141

138

0.074

Glasgow Coma Scale score, mean

13.7

12

0.516

13

13

0.072

Body temperature, mean (℃)

36.6

36.3

0.237

36.5

36.4

0.068

Trauma severit

Head & Cervical AIS, mean

1.3

2.6

0.674

1.6

1.8

0.117

Face AIS, mean

0.1

0.3

0.256

0.2

0.2

0.035

Chest AIS, mean

0.8

1.4

0.381

0.96

1.1

0.089

Abdomen AIS, mean

0.4

0.7

0.343

0.4

0.5

0.062

Extremities AIS, mean

1.5

1.3

0.086

1.5

1.3

0.077

External AIS, mean

0.3

0.4

0.198

0.3

0.3

0.062

ISS, mean

13.2

21.7

0.886

14.9

16.2

0.133

  1. TXA Tranexamic acid, ASMD Absolute standardised mean difference, AIS abbreviated injury scale, ISS Injury severity score