Table 4.
Agreement between the results of tuberculin skin testing and presence of erythema with those for the Quantiferon-TB Gold in-tube assay
| |
TST/Erythema |
||||
|---|---|---|---|---|---|
| TST (−) Erythema (−) | TST (+) or erythema (+) | Total | |||
|
QFT |
negative |
n |
29 |
5 |
34 |
| |
|
% |
55.8% |
9.6% |
65.4% |
|
positive |
n |
3 |
15 |
18 |
|
| |
% |
5.8% |
28.8% |
34.6% |
|
|
total |
n |
32 |
20 |
52 |
|
| |
% |
61.5% |
38.5% |
100` |
|
| kappa value | 0.67 | ||||
TST: Tuberculin Skin Test.
QFT: Quantiferon®-TB Gold in-Tube assay.