TABLE 2.

Comparison of the diagnostic tests used in this study

Test or antigen and assayCR or K value (χ2 value)a
Culture or skin testESAT6-prMPB70
EIALBAAEIALBAAICGA
Culture or skin test0.97 (628.57)0.88 (510.73)0.87 (510.62)0.85 (480.72)0.83 (469.80)
ESAT6-p0.88 (514.18)
EIA 98.7 0.86 (493.47)0.84 (470.87)0.81 (446.73)
LBAA 93.9 94.0 0.77 (396.96)0.75 (382.91)0.74 (373.49)
rMPB70
EIA 93.7 92.9 83.5 0.74 (358.01)0.91 (557.06)
LBAA 92.4 91.9 87.7 87.0 0.70 (321.33)
ICGA 91.6 90.6 87.0 95.8 85.2
  • a CRs (percent) are in boldface type. The K values and χ2 values were obtained by chi-square analysis performed to evaluate the agreement between a positive or negative result of a bacterial culture or skin test, an EIA, an LBAA, and an ICGA with ESAT6-p or rMPB70. According to the chi-square analysis, all of the assays used in this study are statistically significantly associated with each other (P < 0.0001).