TABLE 3.
Detailed analysis of non-TB group by internal studies
| Sample source | No. of samples tested | Outcome | No. of serum samples with the following TB Screen Test result:
|
Specificity (%) | ||
|---|---|---|---|---|---|---|
| Positive | Negative | Indeterminate | ||||
| Drug-treated, clinically negative patients | 60 | Cured of TB | 51 | 9 | 100 | |
| Healthy household contacts | 50 | Clinically positive | 50 | 100 | ||
| BCG-vaccinated children | 15 | Clinically healthy | 15 | 100 | ||
| Hepatitis B virus-positive individuals | 15 | M. tuberculosis negative | 15 | 100 | ||
| Patients with common infections (not TB) | 27 | Clinically negative for TB | 25 | 2 | 100 | |
| Healthy subjects human serum | 344 | Clinically healthy | 6 | 332 | 6 | 98.2 |
| Total | 511 | 6 | 488 | 17 | 98.8 | |