Table 3.
Discordant results of QFT-GIT versus QFT-PLUS (n = 12)
| QFT-GIT results | Immunosuppression | TB infection risk | Sample No. | IFN-γ, IU/mL |
||
|---|---|---|---|---|---|---|
| QFT-GIT |
QFT-PLUS |
|||||
| TB-nil | TB1-nil | TB2-nil | ||||
| Positive | Yes | Biologic therapy | S8 | 0.38 | 0.06 | 0.04 |
| S56 | 0.65 | 0.03 | 0.06 | |||
| S98 | 0.69 | 0.12 | 0.02 | |||
| S117 | 0.77 | 0.21 | 0.22 | |||
| No | TB contact | S68 | 0.37 | 0.01 | 0.04 | |
| Negative | Yes | TB contact | S18 | 0.19 | 0.42 | 0.25 |
| Biologic therapy | S147 | 0.15 | 3.15 | 2.8 | ||
| No | Others | S72 | 0.28 | 0.55 | 0.66 | |
| S141 | 0.34 | 0.63 | 0.34 | |||
| Indeterminate | No | Biologic therapy | S26 | –0.02 | 0 | 0.01 |
| S155 | 0.41 | 0 | 0.01 | |||
| Others | S43 | 0 | 0 | 0 | ||
QFT-GIT, QuantiFERON-TB Gold In-Tube; QFT-PLUS, QuantiFERON-TB Gold Plus; TB, tuberculosis; IFN-γ, interferon-γ.