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Table 4 Multivariable logistic regression for predicting massive transfusion stratified by age and antihypertensives

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 not taking antihypertensives Aged > 65 years taking antihypertensives Aged < 65 years not taking antihypertensives Aged < 65 years taking antihypertensives
P value aOR (95% CI) P value aOR (95% CI) P value aOR (95% CI) P value aOR (95% CI)
Male sex 0.613 0.68
(0.16–2.99)
0.593 2.51
(0.09–72.6)
0.997 1.00
(0.29–3.38)
0.108 0.14
(0.01–1.55)
Age, yr 0.836 0.99
(0.88–1.11)
0.271 1.13
(0.91–1.40)
0.039 1.04*
(1.00–1.07)
0.909 0.99
(0.86–1.15)
Prehospital SBP
  < 90 mmHg 0.959 1.02
(0.95–2.25)
0.012 94.0*
(4.16–795)
0.237 2.12
(0.61–7.23)
0.441 4.16
(0.11–36.6)
 90–110 mmHg 0.290 2.37
(0.48–11.7)
0.024 28.1*
(1.75–52.0)
0.447 1.58
(0.49–5.12)
0.049 10.3*
(1.01–44.7)
  > 110 mmHg (reference) 1.00 1.00 1.00 1.00
SI > 1.0. ED initial 0.002 10.3*
(2.27–46.3)
0.291 8.04
(0.17–83.8)
0.044 3.87*
(1.36–11.0)
0.802 0.67
(0.03–15.1)
RTS 0.015 0.49*
(0.28–0.87)
0.087 0.35
(0.11–1.16)
0.001 0.59*
(0.43–0.81)
0.147 0.52
(0.22–1.26)
ISS 0.655 1.02
(0.93–1.12)
0.216 1.08
(0.96–1.22)
< 0.001 1.10*
(1.05–1.14)
0.100 1.06
(0.99–1.13)
  1. Adjusted for sex, age, prehospital SBP, SI measured at ED admission, RTS, and ISS
  2. aOR adjusted odds ratio, CI confidence interval, ED emergency department, ISS Injury Severity Score, RTS Revised Trauma Score, SBP systolic blood pressure, SI shock index
  3. *P value < 0.05