Nomograms Predicting the Occurrence of Sepsis in Patients following Major Hepatobiliary and Pancreatic Surgery

Table 8

Diagnostic performances of the 2 nomograms for postoperative sepsis estimation.

Variables	Training cohort	Validation cohort
Model 1 (clinical variable)
Cutoff score	106	106
Sensitivity	0.64	0.47
Specificity	0.82	0.85
Positive predictive value	0.29	0.33
Negative predictive value	0.95	0.91
Positive likelihood ratio	3.50	3.13
Negative likelihood ratio	0.44	0.62
Model 2 (clinical and inflammation variables)
Cutoff score	109	109
Sensitivity	0.84	0.74
Specificity	0.73	0.78
Positive predictive value	0.27	0.35
Negative predictive value	0.97	0.95
Positive likelihood ratio	3.15	3.36
Negative likelihood ratio	0.22	0.33