Table 3.
RPD | Description | Sepsis Prevalence | AUC | Sensitivity | Specificity | NPV | PPV |
---|---|---|---|---|---|---|---|
Unanimous, based on discharge evaluation (n = 290 of 447 [64.9%]) | All three panelists and site PI agree on SIRS (171 of 290 [59.0%]) or sepsis (119 of 290 [41.0%]) | 41.0% | 0.89 | 0.97 | 0.34 | 0.94 | 0.51 |
Consensus (n = 410 of 447 [91.7%]) | Majority vote leads to exclusion of 37 indeterminates and classification of 230 of 410 (56.1%) as SIRS and 180 of 410 (43.9%) as sepsis | 43.9% | 0.85 | 0.94 | 0.35 | 0.89 | 0.53 |
Forced (n = 447 of 447 [100.0%]) | All subjects classified as SIRS (245 of 447 [54.8%]) or sepsis (202 of 447 [45.2%]) | 45.2% | 0.82 | 0.92 | 0.65 | 0.91 | 0.69 |
Definition of abbreviations: AUC = area under the curve; NPV = negative predictive value; PI = principal investigator; PPV = positive predictive value; RPD = retrospective physician diagnosis; SIRS = systemic inflammatory response syndrome.
A SeptiCyte LAB cutoff value of 3.1 was used in the analysis. This value had been obtained previously from receiver operating curve analysis of an independent discovery dataset (4).