Table 2.
Number of tests performed to the study population.
| Group 1 n = 21 | Group 2 n = 74 | Group 3 n = 14 | ||
|---|---|---|---|---|
| Ly-TbSpot, n (%) | Not done | 5 (23.8)* | 5 (6.8) | 1 (7.1) |
| Neg | 12 (57.1) | 46 (62.2) | 9 (64.3) | |
| Pos | 4 (19.0) | 22 (29.7) | 3 (21.4) | |
| Indeterminate | 0 (0.0) | 1 (1.4) | 1 (7.1) | |
| B-TbIFNγ, n (%) | Not done | 2 (9.5)† | 28 (37.8) | 7 (50.0)* |
| Neg | 17 (81.0) | 34 (45.9) | 5 (35.7) | |
| Pos | 2 (9.5) | 11 (14.9) | 2 (14.3) | |
| Indeterminate | 0 (0.0) | 1 (1.4) | 0 (0.0) | |
| TST cut off 10 mm, n (%) | Not done | 8 (38.1) | 12 (16.2)† | 9 (64.3)* |
| Neg | 4 (19.0) | 28 (37.8) | 4 (28.6) | |
| Pos | 9 (42.9) | 34 (45.9) | 1 (7.1) |
*Higher proportion of missing test results, compared with the two other patient groups, P < 0.05.
†Lower proportion of missing test results, compared with the two other patient groups, P < 0.05.