Table 1.
Positive results utilizing light-emitting diode fluorescent microscopy and Xpert MTB/RIF assay.
|
|
Total | Smear positive | Xpert positive | Absolute difference | Ratio Xpert/LED | ||
|---|---|---|---|---|---|---|---|
| N | N | % (95% CI) | N | % (95% CI) | % (95% CI) | (95% CI) | |
| Sputum | 166 | 106 | 63.9 (56.2 to 70.8) | 124 | 74.7 (67.5 to 80.8) | 10.8 (5.2 to 16.5) | 1.17 (1.08 to 1.26) |
| Sputum x3 | 166 | 116 | 69.9 (62.4–76.4) | 124 | 74.7 (67.5 to 80.8) | 4.8 (0.6 to 9.1) | 1.07 (1.02 to 1.13) |
| Extrapulmonary | 253 | 23 | 9.1 (6.1 to 13.3) | 74 | 29.2 (24 to 35.2) | 20.2 (14.8 to 25.5) | 3.22 (2.29 to 4.52) |
| CSF | 142 | 3 | 2.1 (0.7 to 6.4) | 35 | 24.6 (18.2 to 32.4) | 22.5 (15 to 30.1) | 11.67 (3.95 to 34.42) |
| Pleural fluid | 75 | 10 | 13.3 (7.3 to 23.1) | 24 | 32 (22.4 to 43.4) | 18.7 (8.5 to 28.8) | 2.4 (1.49 to 3.85) |
| Ascitic fluid | 18 | 2 | 11.1 (2.8 to 35.4) | 5 | 27.8 (12 to 52) | 16.7 (−6.1 to 39.4) | 2.5 (0.85 to 7.31) |
| Pus | 10 | 7 | 70 (37.5 to 90.1) | 8 | 80 (45.8 to 95) | 10 (−18.6 to 38.6) | 1.14 (0.88 to 1.49) |
| Stool | 8 | 1 | 12.5 (1.7 to 53.9) | 2 | 25 (6.3 to 62.4) | 12.5 (−22.9 to 47.9) | 2 (0.5 to 8) |
| Total | 419 | 129 | 30.8 (26.5 to 35.4) | 198 | 47.3 (42.5 to 52.1) | 16.5 (12.6 to 20.3) | 1.53 (1.38 to 1.7) |
CI: confidence interval; LED: light-emitting diode fluorescent microscopy; CSF: cerebrospinal fluid.