Table 3.
Distribution of QFT-Plus, and TBE Results Among Enrolled Participants
| Group 1, N = 200A | Group 2, N = 200A | Group 3, N = 110A | Group 4, N = 22A | Overall, N = 532A | ||
|---|---|---|---|---|---|---|
| QFT-Plus | Positive | 49 (24.5%) | 73 (36.5%) | 77 (70.0%) | 13 (59.1%) | 212 (39.8%) |
| Negative | 150 (75.0%) | 126 (63.0%) | 32 (29.1%) | 8 (36.4%) | 316 (59.4%) | |
| Indeterminate | 1 (0.5%) | 1 (0.5%) | 1 (0.9%) | 1 (4.5%) | 4 (0.8%) | |
| TBE | Positive | 59 (29.5%) | 79 (39.5%) | 74 (67.3%) | 14 (63.6%) | 226 (42.5%) |
| Negative | 136 (68.0%) | 121 (60.5%) | 29 (26.4%) | 8 (36.4%) | 294 (55.3%) | |
| Indeterminate | 5 (2.5%) | 0 (0.0%) | 7 (6.4%) | 0 (0.0%) | 12 (2.3%) | |
| p-value# | 0.210 | 0.56 | 0.847 | 0.907 | 0.277 |
Notes: An (%); # Pearson’s Chi-squared test.
Abbreviations: QFT-Plus, QuantiFERON-TB Gold Plus; TBE, Standard E TB-Feron ELISA.