Table 1. Baseline characteristics of the study patients.
| Patient characteristics | TB | Non-TB | Total |
|---|---|---|---|
| Patients n | 133 | 48 | 181 |
| Sex | |||
| Male | 76 | 27 | 103 |
| Female | 57 | 21 | 78 |
| Age (years) | 51 (17, 80) | 50 (23, 72) | |
| Chest radiology findings | |||
| Typical | 16 | 2 | 18 |
| Atypical | 117 | 46 | 163 |
| CT findings# | |||
| Nodule | 57 | 3 | 60 |
| Mass | 39 | 8 | 47 |
| Consolidation | 14 | 2 | 16 |
| Cavity | 7 | 10 | 17 |
| Other | 16 | 25 | 41 |
| Sputum culture | |||
| Positive | 9 | ||
| Negative | 24 | ||
| IGRAs (n) | |||
| Positive | 112 | ||
| Negative | 21 | ||
| Final diagnosis | |||
| Malignancy | 6 | ||
| Mycosis | 8 | ||
| Nonspecific inflammatory lesion | 25 | ||
| Other | 9 | ||
| HIV positive* | 0 |
Data are presented as n (%) or median (range). CT: computed tomography; TB: tuberculosis; IGRA: interferon-γ release assay.
# typical chest radiographic findings were defined as multiple nodular or interstitial infiltrates predominantly in the upper lobes;
* all patients received HIV tests, and none showed positive results.