Table 2. Sensitivity, specificity, and accuracy of diagnostic tools with real-time PCR.

N: Negative, P: Positive, TP: True-positive, FP: False-negative, TN: True-negative, FN: False-negative, PPV: Positive predictive value, NPV: Negative predictive value

ImmunoCard STAT!: Meridian Bioscience, Germany; CerTest: Biotec, Zaragoza, Spain

Test		Real-time PCR		Sensitivity %	Specificity %	PPV %	NPV %	95% CI	P-value
		P	N
Immuno Card STAT! CGE	P	TP25	FP6	(59.52)	(89.65)	(80.64)	(75.36)	(0.64-0.85)	P < 0.001
	N	FN17	TN52
CerTest	P	TP18	FP1	(42.86)	(98.27)	(94.74)	(70.37)	(0.60-0.82)	P < 0.001
	N	FN24	TN57
Ritchie	P	TP17	FP0	(40.47)	(100)	(100)	(69.88)	(0.60-0.81)	P < 0.001
	N	FN25	TN58
Direct smears	P	TP22	FP1	(52.38)	(98.27)	(95.65)	(74.02)	(0.65-0.86)	P < 0.001
	N	FN20	TN57