Table 4 Agreement between TST (at two cut-offs) and QFT-GIT assay results stratified by BCG scar status
Status of BCG scar | TST (mm) | QFT-GIT Pos | QFT-GIT Neg | Kappa | p value |
|---|---|---|---|---|---|
BCG scar present | ≥10 | 21 | 5 | 0.71 | 0.000 |
<10 | 2 | 20 | |||
BCG scar absent | ≥10 | 23 | 1 | 0.93 | 0.000 |
<10 | 1 | 34 | |||
Total | ≥10 | 44 | 6 | 0.83 | 0.000 |
<10 | 3 | 54 | |||
BCG scar present | >5 | 22 | 7 | 0.67 | 0.000 |
<5 | 1 | 18 | |||
BCG scar absent | >5 | 24 | 1 | 0.97 | 0.000 |
<5 | 0 | 34 | |||
Total | >5 | 46 | 8 | 0.83 | 0.000 |
<5 | 1 | 52 |