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Positive result rates for different tests for TB during anti-TB treatment.
| Treatment group | n | PPD n (%) | TB antibody n (%) | AFB smear n (%) | MTB culture n (%) | QFT n (%) |
|---|---|---|---|---|---|---|
| 2 months | 20 | 11 (55) | 3 (15) | 4 (20) | 4 (20) | 19 (95) |
| 6 months | 20 | 10 (50) | 4 (20) | 2 (10) | 0 (0) | 6 (30) |
TB, tuberculosis; PPD, purified protein derivative; AFB, acid-fast bacilli; MTB, Mycobacterium tuberculosis; QFT, QuantiFERON®-TB.
