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Table 4 Predictive properties of the various combinations studied to identify the Red Flag binary alert

From: Development and validation of a pre-hospital “Red Flag” alert for activation of intra-hospital haemorrhage control response in blunt trauma

  1. Shading indicates chosen combination
  2. T threshold, Se sensitivity, Sp specificity, PPV positive predictive value, NPV negative predictive value, +LR positive likelihood ratio, –LR negative likelihood ratio, AUC area under the receiver operating characteristic curve, SI Shock Index, Pelvis unstable pelvis, OTI oro-tracheal intubation, Hb point-of-care haemoglobin, MBP mean blood pressure, SpO 2 peripheral oxygen saturation