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Table 1 Comparison of Discrimination and Calibration of the Full Eight Variable SURPAS Model with Models without Systemic Sepsisa

From: Refining the predictive variables in the “Surgical Risk Preoperative Assessment System” (SURPAS): a descriptive analysis

Adverse outcome C-index Brier Score
Full Model Full Model with No Systemic Sepsis Difference Full Model Full Model with No Systemic Sepsis Difference
30-day mortality 0.926 0.922 −0.004 0.0102 0.0103 0.0001
Morbidity 0.801 0.793 −0.008 0.0904 0.0922 0.0018
Readmission 0.699 0.698 −0.001 0.0488 0.0489 0.0001
Infection 0.774 0.761 −0.013 0.0445 0.0450 0.0005
Bleeding/Transfusion 0.850 0.846 −0.004 0.0419 0.0421 0.0002
Pulmonary 0.890 0.882 −0.008 0.0228 0.0237 0.0009
UTI 0.750 0.749 −0.001 0.0145 0.0145 0.0000
VTE 0.765 0.760 −0.005 0.0086 0.0086 0.0000
Cardiac 0.869 0.866 −0.003 0.0062 0.0062 0.0000
Renal 0.859 0.853 −0.006 0.0059 0.0059 0.0000
Neurologic 0.829 0.828 −0.001 0.0021 0.0021 0.0000
  1. aAbbreviations: SURPAS Surgical Preoperative Risk Assessment System, UTI Urinary tract infection, VTE Venous thromboembolism