| Tuberculosis diagnostic test results’ |
|
LTBI case |
| Old (Standard) |
New |
|
Test score |
| definition |
| CXR |
TST |
QFT-GIT |
T-SPOT .TB |
|
| |
|
| |
|
|
|
|
|
| - |
- |
- |
- |
1 |
Negligible |
| + |
- |
- |
- |
2 |
Low |
| - |
+ |
- |
- |
3 |
Low |
| - |
- |
+ |
- |
4 |
Low |
| - |
- |
- |
+ |
5 |
Low |
| + |
+ |
- |
- |
6 |
Average |
| + |
- |
+ |
- |
7 |
High |
| - |
+ |
+ |
- |
8 |
High |
| + |
- |
- |
+ |
9 |
High |
| |
|
|
|
|
|
| - |
+ |
- |
+ |
10 |
High |
| - |
- |
+ |
+ |
11 |
Extremely High |
| + |
- |
+ |
+ |
12 |
Extremely High |
| |
|
|
|
|
|
| - |
+ |
+ |
+ |
13 |
Extremely High |
| + |
+ |
+ |
+ |
14 |
Extremely High |
| |
|
|
|
|
|
CXR=chest X-ray, TST=tuberculin skin test, IGRAs=interferon gamma release
assays, QFT-GIT=QuantiFERON Gold In-Tube test, T-SPOT .TB=T-SPOT .TB
test, LTBI=latent tuberculosis infection
*Risk defined according to Thrusfield, M. (2007): Negligible (of
likelihood)=Insignificant, Low=less than average, Average=usual amount of risk,
High=above the normal or average level, Extremely high=outermost higher than
average |
