Table 2.

Comparative assessment of the performance of the methods used in diagnostics in microfilaremic dogs according to Kappa index, confidence interval, sensitivity and specificity of the tests analyzed.

Test	Samples n/n total (%)	Kappa index	IC 95%	Sensitivity	Specificity
Ag Test Di × WOO	4/400 (1%)	0.078	0.038–0.118	80	82
Morfology Knott × PCR Di	4/75 (5.3%)	0.000	0.0–0.0	75	100
Morfology Knott × PCR Ar	57/75 (76%)	0.000	0.0–0.0	77	100

Ag, antigen; Ar: Acanthocheilonema reconditum; IC: confidence interval; Di: Dirofilaria immitis; PCR: Polymerase Chain Reaction.