Evaluation of an Immunoassay-Based Algorithm for Screening and Identification of Giardia and Cryptosporidium Antigens in Human Faecal Specimens from Saudi Arabia

Table 3

The diagnostic performance of the two rapid tests.

RIDA Quick	The diagnostic performance parameters
	Sensitivity		Specificity		PPV		NPV
	SE%	95% CI	SP%	95% CI	PPV%	95% CI	NPV%	95% CI
Giardia	97.5%	0.8-0.9	100%	0.9-1.0	100%	0.9-1.0	98.5%	0.9-1.0
Cryptosporidium	95%	0.8-0.9	100%	0.9-1.0	100%	0.9-1.0	97%	0.9-1.0