Table 3.

Agreement between IDvet and IN3 screening ELISAs in goat samples from positive farms.

	IDvet screening ELISA		Total
	Negative	Positive
IN3 screening ELISA
Negative	4,852	167	5,019
Positive	271	73	344
Total	5,123	240	5,363*

Positive farms = farms with at least one positive goat in the IDvet Screening ELISA. The 240 IDvet screening ELISA–positive and the 344 IN3 screening ELISA–positive samples correspond to 511 goats positive to at least one of either test. Agreement between IDvet and IN3 screening ELISAs is only fair (Cohen kappa = 0.21, 95% CI = 0.16–0.26).

^*Goats present on positive farms: all = 5,855; tested by IN3 screening ELISA = 5,363.