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Table 3 Results of multivariate analysis

From: Predictors of hospital mortality in adult trauma patients receiving extracorporeal membrane oxygenation for advanced life support: a retrospective cohort study

Endpoint Predictor β coefficient Odds Ratio (95% CI) p value
aHospital Death ISS > 35 1.905 6.716 (1.359–33.187) 0.019
Shock/Cardiac arrest 1.625 5.079 (1.012–25.499) 0.048
bHemorrhage on ECMO Pre-ECMO aPTT > 40 s 2.028 7.6 (1.609–35. 906) 0.01
  1. aPredicted mortality (y) = ℮X / (1 + ℮X). X = − 1.853 + 1.905 × (Injury severity score > 35) + 1.625 × (post-traumatic shock or cardiac arrest). Hosmer-Lemeshow test p = 0.985; Negelkerke R2 = 0.354; c-index = 0.79
  2. bPredicted risk of hemorrhage on ECMO (y) = ℮X / (1 + ℮X). X = − 1.558 + 2.028 × (Pre-ECMO aPTT > 40 s)
  3. Negelkerke R2 = 0.253; c-index = 0.73