Practical fecal calprotectin cut-off value for Japanese patients with ulcerative colitis

Table 3 Test characteristics of fecal calprotectin levels to predict relapse and remission

Variable	Cut-off value (μg/g)	AUC	95%CI	Sensitivity (%)	Specificity(%)	PPV (%)	PLR	Accuracy (%)
Relapse	175	0.648	0.517-0.778	68	61	33	1.75	63
PMS 0	289	0.796	0.714-0.878	72	84	88	4.48	76
MES 0	490	0.823	0.707-0.939	100	62	42	2.6	70
REI 0	288	0.78	0.658-0.903	100	70	32	3.38	74
UCEIS 0	288	0.777	0.645-0.909	88	71	37	3.06	74
Riley’s score 0	125	0.881	0.780-0.981	80	86	62	5.76	85
Matts grade 1	123	0.918	0.831-1.000	88	87	58	6.65	87

AUC: Area under the curve; CI: Confidence interval; PPV: Positive-predictive value; PLR: Positive likelihood ratio; PMS: Partial Mayo score; MES: Mayo endoscopic subscore; REI: Rachmilewitz endoscopic index; UCEIS: Ulcerative colitis endoscopic index of severity.