Table 2.
Main characteristics of the sample origin according to type and result of Xpert MTB/RIF Ultra.
| Variable | Total (n = 175) | Positive (n = 48) | Negative (n = 127) |
|---|---|---|---|
| Age, years (n = 99) a | 57.8 (39.3–71.0) | 52.7 (31.8–65.7) | 59.7 (40.2–72.0) |
| Sample origin | |||
| Pulmonary (%) | 102 (58.3) | 41 (85.4) | 61 (48.0) |
| Bronchoalveolar lavage | 33 (32.4) | 13 (31.7) | 20 (32.8) |
| Bronchial aspirate | 33 (32.4) | 16 (39.0) | 17 (27.9) |
| Sputum | 36 (35.3) | 12 (29.3) | 24 (39.3) |
| Extrapulmonary (%) | 73 (41.7) | 7 (14.6) | 66 (52.0) |
| Cerebrospinal fluid | 7 (9.6) | 0 (0.0) | 7 (10.6) |
| Urine | 21 (28.8) | 3 (42.8) | 18 (27.3) |
| Pleural fluid | 24 (32.9) | 1 (14.3) | 23 (34.8) |
| Ascitic fluid | 5 (6.8) | 0 (0.0) | 5 (7.6) |
| Serum | 1 (1.4) | 0 (0.0) | 1 (1.5) |
| Pericardial fluid | 2 (2.7) | 0 (0.0) | 2 (3.0) |
| Bone biopsy | 1 (1.4) | 1 (14.3) | 0 (0.0) |
| Breast biopsy | 6 (8.2) | 0 (0.0) | 6 (9.1) |
| Bone marrow biopsy | 1 (1.4) | 0 (0.0) | 1 (1.5) |
| Soft tissue abscess | 4 (5.4) | 1 (14.3) | 3 (4.6) |
| Intrathoracic abscess | 1 (1.4) | 1 (14.3) | 0 (0.0) |
a
Median and interquartile range.