TABLE 2.
Comparison of the diagnostic tests used in this study
| Test or antigen and assay | CR or K value (χ2 value)a
|
|||||
|---|---|---|---|---|---|---|
| Culture or skin test | ESAT6-p
|
rMPB70
|
||||
| EIA | LBAA | EIA | LBAA | ICGA | ||
| Culture or skin test | 0.97 (628.57) | 0.88 (510.73) | 0.87 (510.62) | 0.85 (480.72) | 0.83 (469.80) | |
| ESAT6-p | 0.88 (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).