Table III.

Comparison of BISAP with Ranson’s score in predicting SAP at ≥ 3 (n=206).

	Accuracy	Sensitivity	Specificity	+PV	-PV	AUC (95% CI)	Measure of agreement Kappa (95% CI)
Ranson ≥ 3	82.0%	97.4%	78.4%	51.3%	99.2%	0.92 (0.87 - 0.97)	0.56 (0.44 - 0.67) < 0.001
BISAP ≥ 3	76.2%	69.2%	77.8%	42.2%	91.5%	0.73 (0.64 - 0.82)	0.37 (0.23 - 0.50) < 0.001

BISAP: bedside index of severity in acute pancreatitis, SAP: severe acute pancreatitis, +PV: positive predictive value, -PV: negative predictive value, AUC: Area under curve, CI: confidence intervals