TABLE 4.

Performance comparison of the nine assays in T. gondii-specific IgM antibody detection on routine panels^a and concordance between positive IgM detection and confirmation by the reference method (ISAGA-M) in chronic (>1 year) toxoplasmosis patients^b

Assay	Performance (%)
	Sensitivityc	Specificityd	PPV	NPV	Concordance with ISAGA-M
AdviaCentaure	89.4	98.1	85.7	98.6	81
Architecte	80.9	99.7	97.4	97.6	95.2
AxSYMf	86	100	100	97.9	60
Elecsyse	76.6	96.7	75	97	92.9
Enzygnoste	84.2	99.7	97	98.4	16.7
Liaisone	61.7	98.4	82.4	95.3	59.5
Plateliae	97.9	92.6	63	99.7	97.6
VIDASf	65	99.7	90.5	94.9	70
VIDIAf	79	97.9	90.5	94.3	60

^aPanels containing 419 serum samples in assessment 1 and 406 serum samples in assessment 2.

^bPanels containing 19 serum samples in assessment 1 and 45 serum samples in assessment 2.

^cSensitivity = true positive/(true positive + false negative).

^dSpecificity = true negative/(true negative + false positive).

^eAssessment 2.

^fAssessment 1.