Table 3. Test characteristics for various combinations of biomarkers at 2 hr post-surgery.

Biomarker or Combination	AUC	Sensitivity	Specificity	Positive Predictive Value	Negative Predictive Value
SEMA at 464.5	0.631	0.57	0.79	0.77	0.59
NETRIN at 621.9	0.658	0.47	0.82	0.76	0.56
NGAL at 1225.3	0.651	0.51	0.89	0.86	0.60
SEMA + NETRIN	0.582	0.34	0.82	0.71	0.50
SEMA + NGAL	0.707	0.49	0.93	0.89	0.59
NETRIN + NGAL	0.625	0.29	0.96	0.91	0.52
At Least 1 Positive	0.732	0.71	0.75	0.78	0.68
At Least 2 Positive	0.664	0.54	0.79	0.76	0.58
All 3 Positive	0.625	0.29	0.96	0.91	0.52