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Table 3 Multivariate analysis of the impact of blood type O on outcomes

From: The impact of blood type O on mortality of severe trauma patients: a retrospective observational study

  Adjusted odds ratio (95% CI) Adjusted difference (95% CI) p value
Primary outcome
 All-cause in-hospital mortality 2.86 (1.84–4.46) < 0.001
Secondary outcomes
 Death due to exsanguination 2.55 (1.25–5.22) 0.009
 Death due to TBI 1.80 (1.08–3.01) 0.024
 Death due to others 2.73 (1.21–6.13) 0.015
 Ventilator-free days −2.7 (−3.9 to −1.6) < 0.001
 Units of RBCs administered within 24 h 1.23 [−0.94–1.36] 0.722
  1. CI confidence interval; RBC red blood cell; TBI traumatic brain injury