Table 7. Concordance between three assays.

	Ag85 Positive (n=30)	Ag85 Negative (n=98)	Concordance	κ (95% CI)
ADA Positive (n=58)	17	41	57.81	0.111 (-0.0681-0.292)
ADA Negative (n=70)	13	57
PCR Positive (n=22)	15	7	82.81	0.472 (0.272-0.673)
PCR Negative (n=106)	15	91
	PCR Positive (n=22)	PCR Negative (n=106)
ADA Positive (n=25)	11	47	54.68	0.0343 (-0.149 to 0.218)
ADA Negative (n=16)	11	59

Concordance between TB-Ag ELISA, ADA, PCR test for TB in the Melghat population (n=128). Note: κ = Kappa value; 95% CI = 95% Confidence interval