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Table 3 Multivariable logistic regression analysis for massive transfusion and 30-day mortality at the injury scene and emergency department admission 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

 

Aged > 65 years taking antihypertensives

Aged > 65 years not taking antihypertensives

Crude OR

(95% CI)

Adjusted OR

(95% CI)

Crude OR

(95% CI)

Adjusted OR

(95% CI)

A. Prediction of MT

Male sex

1.60

(0.64–4.02)

2.51

(0.09–72.7)

2.12

(1.00–4.43)

0.68

(0.16–2.99)

Age, yr

0.95

(0.88–1.02)

1.13

(0.91–1.40)

1.02

(0.96–1.07)

0.99

(0.88–1.11)

Prehospital SBP

  < 90 mmHg

95.7*

(4.78–194)

94.0*

(4.16–795)

6.38

(0.67–61.1)

1.02

(0.95–2.25)

 90–110 mmHg

28.7*

(2.49–133)

28.1*

(1.75–52.0)

10.8*

(3.17–32.0)

2.37

(0.48–11.7)

  > 110 mmHg

1.00

1.00

1.00

1.00

SI > 1.0. ED

20.7*

(7.48–57.2)

8.04

(0.17–83.8)

23.9*

(11.6–49.1)

10.3*

(2.27–46.3)

RTS

0.52*

(0.37–0.77)

0.35

(0.10–1.16)

0.33*

(0.26–0.43)

0.49*

(0.28–0.87)

ISS

1.09*

(1.05–1.14)

1.08

(0.96–1.22)

1.10*

(1.06–1.14)

1.02

(0.93–1.12)

B. 30-day mortality

Male sex

1.01

(0.60–1.71)

0.29

(0.07–1.25)

2.09*

(1.29–3.37)

1.00

(0.31–3.28)

Age, yr

1.00

(0.96–1.03)

1.08

(0.98–1.19)

1.00

(0.97–1.03)

0.99

(0.92–1.08)

Prehospital SBP

  < 90 mmHg

5.00

(0.50–50.5)

1.00

(0.06–12.0)

4.56

(0.80–26.1)

1.01

(0.26–11.0)

 90–110 mmHg

1.50

(0.33–6.93)

2.69

(0.44–16.6)

2.88*

(1.06–7.85)

0.79

(0.17–3.72)

  > 110 mmHg

1.00

1.00

1.00

1.00

SI > 1.0. ED

7.96*

(3.61–17.5)

0.80

(0.04–17.1)

3.05*

(1.51–6.17)

0.06*

(0.01–0.56)

RTS

0.30*

(0.22–0.39)

0.45*

(0.28–0.71)

0.28*

(0.22–0.36)

0.33*

(0.21–0.53)

ISS

1.18*

(1.14–1.22)

1.12*

(1.05–1.20)

1.15*

(1.21–1.18)

1.09*

(1.02–1.16)

  1. ED emergency department, CI confidence interval, ISS Injury Severity Score, MT massive transfusion, OR odds ratio, RTS Revised Trauma Score, SBP systolic blood pressure, SI shock index
  2. *P value < 0.05