Distribution of QuantiFERON TB® Gold In-Tube#(QFT-IT) test, interferon-γ inducible protein (IP)-10 test 237 pg·mL−1, IP-10 test 455 pg·mL−1, IP-10 test 673 pg·mL−1 and monocyte chemotactic protein (MCP)-2 test results among the students, staff and tuberculosis patients
| Test result | QFT-IT test | IP-10 test 237 pg·mL−1 | IP-10 test 455 pg·mL−1 | IP-10 test 673 pg·mL−1 | MCP-2 test |
| Patients | |||||
| Positive | 65 (81) | 72 (90) | 66 (83) | 59 (74) | 57 (71)¶ |
| Negative | 11 (14) | 4 (5) | 8 (10) | 15 (19) | 14 (18) |
| Indeterminate | 4 (5) | 4 (5) | 6 (8) | 6 (8) | 9 (11) |
| Staff | |||||
| Positive | 0 (0) | 10 (26)+ | 6 (16)§ | 3 (8) | 1 (3) |
| Negative | 38 (100) | 28 (74) | 32 (84) | 35 (92) | 37 (97) |
| Indeterminate | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Students | |||||
| Positive | 0 (0) | 4 (5) | 3 (3) | 0 (0) | 0 (0) |
| Negative | 86 (100) | 82 (95) | 83 (97) | 86 (100) | 86 (100) |
| Indeterminate | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
Data are presented as n (%). #: manufactured by Cellestis, Carnagie, Australia. ¶: statistically different detection rate compared with QFT-IT (p<0.04); +: statistically different rate of positive responders (approximation of false-positive rate) compared with QFT-IT (p<0.002); §: statistically different rate of positive responders (approximation of false-positive rate) compared with QFT-IT (p<0.02).