Table 2. Test Performance and Overall Accuracy of the Three Fecal Calprotectin Kits and CRP Assay.

	IBD vs. IBS	IBD vs. other colitis	IBS vs. other colitis
Calprotectin (µg/g), Quantum Blue®	100/80/97/100/97	100/40/91/100/91	20/40/25/33/30
Calprotectin (µg/g), EliA™	97/80/97/80/94	97/40/91/67/89	20/40/25/33/30
Calprotectin (µg/g), RIDASCREEN®	82/100/100/44/84	82/40/88/29/76	0/40/0/33/22
CRP (mg/L)	52/100/100/25/58	52/100/100/25/58	0/100/0/50/50

Sensitivity/specificity/positive predictive values/negative predictive values/overall accuracy (%). See the METHODS section regarding the definition of "other colitis."