Research Article
Rapid Diagnosis of Childhood Pulmonary Tuberculosis by Xpert MTB/RIF Assay Using Bronchoalveolar Lavage Fluid
Table 2
Accuracy of Xpert MTB/RIF assay, culture, and smear on childhood PTB compared with CCRS.
| | Tests | Sensitivity
, % | Specificity
, % | PPV % | NPV % |
| | Xpert MTB/RIF assay | 44/83, 53.0 (41.8–63.9) | 168/168, 100 (97.2–100) | 100 (90.0–100) | 81.2 (75.0–86.1) | | MTB culture | 24/83, 28.9 (19.7–40.1) | 168/168, 100 (97.2–100) | 100 (82.8–100) | 74.0 (67.7–79.5) | | AFB microscopy | 7/83, 8.4 (3.7–17.1) | 168/168, 100 (97.2–100) | 100 (56.1–100) | 68.8 (62.6–74.5) |
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