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Concordance between QFT-3G and TSPOT
| TSPOT positive (n = 14) |
TSPOT negative | TSPOT invalid | |
|---|---|---|---|
|
QFT-3G positive (n = 9) |
1 | 6 | 2 |
| QFT-3G negative | 13 | 264 | 44 |
| QFT-3G indeterminate | 0 | 4 | 1 |
κ = 0.06, 95% CI (-0.1, 0.2).
TST = Tuberculin Skin Test
QFT-3G = QuantiFERON-TB Gold in Tube
TSPOT = T-SPOT.TB
