Specimen type | N | Culture | Gene Xpert Negative (%) | Gene Xpert Positive (%) | Accuracy (95% CI) | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) |
---|---|---|---|---|---|---|---|---|---|
Lymph Node Aspirates | 46 | Negative | 15 (32.6) | 4 (8.7) | 84.8 | 88.9 | 78.9 | 85.7 | 83.3 |
Positive | 3 (6.5) | 24 (52.2) | 74.4–95.2 | 77.1–100 | 60.6–97.3 | 72.8–98.7 | 66.1–98.2 | ||
Pleural Fluid | 37 | Negative | 30 (81.2) | 2 (5.4) | 91.9 | 0.8 | 93.8 | 66.7 | 96.8 |
Positive | 1 (2.7) | 4 (10.8) | 83.1–100 | 44.9–98.2 | 85.4–100 | 28.9–100 | 90.5–100 | ||
Ascites | 13 | Negative | 8 (61.5) | 1 (7.7) | 92.3 | 100 | 88.9 | 80 | 100 |
Positive | 0 (0) | 4 (3.08) | 77.8–100 | 100–100 | 68.4–100 | 44.9–100 | 100–100 | ||
Synovial Fluid | 2 | Negative | 0 (0) | 1 (100) | 50 | 100 | 50 | ||
Positive | 0 (0) | 1 (50) | 19.3–19.3 | 100–100 | 19.3–19.3 | ||||
Cerebrospinal fluid | 11 | Negative | 10 (90.9) | 0 (0) | 100 | 100 | 100 | 100 | 100 |
Positive | 0 (0) | 1 (9.1) | 100–100 | 100–100 | 100–100 | 100–100 | 100–100 | ||
Pericardial Fluid | 1 | Negative | 1 (100) | 0 (0) | 100 | 100 | 100 | ||
Positive | 0 (0) | 0 (0) | 100–100 | 100–100 | 100–100 | ||||
Total specimens | 109 | Negative | 64 (58.7) | 7 (6.4) | 89.0 | 89.2 | 90.15 | 82.5 | 94.1 |
Positive | 4 (3.7) | 34 (31.2) | 84.3–95 | 79.7–99.2 | 83.2–97.1 | 71.4–94.4 | 88.5–99.7 |