TABLE 3: Positive and negative results determined by the reference standard in relation to the POC-CCA test results, considering trace results as negative.

POC-CCA	Reference standard
	Positive	Negative	Total
Positive	23	14	37
Negative	40	140	180
Total	63	154	217

POC-CCA: Point-of-care circulating cathodic antigen test; Reference standard: composed of a total of 16 KK slides and 30 grams of fecal matter, examined by HTX.