Usefulness of serum lipase for early diagnosis of post-endoscopic retrograde cholangiopancreatography pancreatitis

Table 4 The areas under the receiver operating characteristic curves and optimal cutoff values for s-Lipase and s-Amylase based on the presence/absence of post-endoscopic retrograde cholangiopancreatography pancreatitis in the early stage after endoscopic retrograde cholangiopancreatography

	s-Lip	s-Amy	P-value1
AUC (95%CI)	0.908 (0.880-0.940)	0.880 (0.846-0.915)	0.023
Optimal cutoff value (U/L)	342	171	―
Sensitivity	0.859	0.859	―
Specificity	0.867	0.763	―
Positive predictive value	0.405	0.277	―
Negative predictive value	0.981	0.979	―

¹P < 0.05, s-Lip vs s-Amy. AUC: Area under the curve; CI: Confidence interval; s-Lip, Serum lipase; s-Amy: Serum amylase.