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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