Comparison of fecal calprotectin levels and endoscopic scores for predicting relapse in patients with ulcerative colitis in remission

Table 2 Receiver-operating characteristic analysis of fecal calprotectin and Ulcerative Colitis Colonic Index of Severity for predicting Mayo Endoscopic Subscore 0

Factor	FC	UCCIS
Cut-off value	385	6.6
AUC (95%CI)	0.858 (0.770-0.946)	0.987 (0.969-1.000)
PPV	0.793	0.992
NPV	0.804	0.994
Sensitivity	0.719	0.992
Specificity	0.804	0.985
Accuracy	0.800	0.947

AUC: Area under the curve; CI: Confidence interval; FC: Fecal calprotectin; NPV: Negative predictive value; PPV: Positive predictive value; UCCIS: Ulcerative Colitis Colonoscopic Index of Severity.