Performance of IgM, IgA, and IgG ELISA and Mantoux test in bacteriologically confirmed TB patients and Contacts.

(Pos): positive; (Neg): negative; CI: confidence interval;#PPV: positive predictive value;##NPV = Negative predictive value; LRP: likelihood ratio for positive test;*Mantoux test was done only in 456 out of 470 PTB patients and 667 out of 789 asymptomatic household contacts; Mantoux*1 when Mantoux results with skin reaction indurations size ≥10 mm were interpreted as positive result, whereas in Mantoux*2 results with reaction indurations size ≥15 mm were considered as Mantoux positive.+Any EIA: means subjects detected positive by at least one of three (IgG/IgM/IgA) EIA tests. Values in parenthesis are percentage with 95% CI values.