Table 1. The relative performance of serological tests against statutory ante-mortem tests.

Test type	n	Comparator	P-value	AUC	Sens	Spec	PPV	NPV	Prev. (comparator) a	Test prev. b
ENFER 2ag	919	Skin test	0.008	0.52	7.44%	97.40%	30.00%	87.40%	13%	3.26%
ENFER 2ag	920	IFNγ	0.009	0.52	5.22%	98.00%	63.30%	61.20%	40%	3.26%
ENFER 4ag	919	Skin test	0.012	0.52	4.13%	99.00%	38.50%	87.20%	13%	1.41%
ENFER 4ag	920	IFNγ	0.013	0.51	2.75%	99.50%	76.90%	61.00%	40%	1.41%
IDEXX	921	Skin test	0.008	0.53	9.09%	96.40%	27.50%	87.50%	13%	4.34%
IDEXX	922	IFNγ	0.091	0.51	5.75%	96.60%	52.50%	61.00%	40%	4.34%

Skin test: SICCT standard interpretation.

^aPrev. (comparator): the prevalence of the respective comparator, e.g. skin test etc.

^b Test prev.: the prevalence of the serological test being reported e.g. ENFER 2ag