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Table 2 SIPA receiver operating characteristic analysis as continuing variable

From: Validation of the age-adjusted shock index for pediatric casualties in Iraq and Afghanistan

Variable ROC threshold AUC Sensitivity Specificity
Massive transfusion
  < 1 year (n = 50) 1.4 0.53 0.66 0.54
 1–3 years (n = 396) 1.8 0.65 0.40 0.86
 4–6 years (n = 576) 1.4 0.68 0.52 0.77
 7–12 years (n = 1356) 1.3 0.75 0.61 0.82
 13–17 years (n = 767) 1.1 0.76 0.62 0.80
Death
  < 1 year 1.9 0.60 0.50 0.88
 1–3 years 1.6 0.61 0.53 0.70
 4–6 years 1.4 0.68 0.55 0.75
 7–12 years 1.3 0.61 0.47 0.77
 13–17 years 1.0 0.66 0.68 0.64
  1. ROC Receiver operating characteristic; AUC Area under the curve