Table 2.
Comparison between LED-FM, GeneXpert sensitivity and specificity.
| Total |
Pleural fluid |
BAL |
CSF |
Pus |
Ascetic fluid |
Synovail fluid |
Urine |
Pericardial Fluid |
Bone Marrow |
Tissues. |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | GX | LED-FM | |
| Sensitivity % | 73 | 40 | 58 | 42 | 88 | 38 | 83 | 42 | 83 | 33 | 100 | 57 | 86 | 29 | 57 | 57 | 86 | 29 | 50 | 0 | 100 | 40 |
| Specificity % | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| PPV | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| NPV | 95 | 89 | 90 | 87 | 94 | 77 | 96 | 87 | 98 | 90 | 100 | 95 | 86 | 55 | 93 | 93 | 98 | 91 | 91 | 83 | 100 | 91 |
PPV, positive predictive value; NPV, negative predictive value; GX, GeneXpert; CSF, cerebrospinal fluid; LED-FM, light emitting diode fluorescent microscopy.