Table 5.
Diagnostic performance of LAM in combination of 2 other methods in PTB.
| Methods | Results | CRS | Sensitivity | Increment | Specificity | PPV | NPV | Kappa | |
|---|---|---|---|---|---|---|---|---|---|
| PTB | Non-TB | ||||||||
| LAM + Xpert+smear | positive | 119 | 0 | 68.79%* | 13.29% | 100.00% | 100.00% | 40.66% | 0.437 |
| negative | 54 | 37 | |||||||
| LAM + Xpert+culture | positive | 128 | 0 | 73.99%* | 18.50% | 100.00% | 100.00% | 45.12% | 0.501 |
| negative | 45 | 37 | |||||||
| LAM + Xpert+RNA | positive | 121 | 0 | 69.94%* | 14.45% | 100.00% | 100.00% | 41.57% | 0.451 |
| negative | 52 | 37 | |||||||
CRS, composite reference standard; PTB, pulmonary tuberculosis; PPV, positive predictive value; NPV, negative predictive value; RNA, ribonucleic acid; TB, tuberculosis; LAM, lipoarabinomannan; *p < 0.05, Compared to LAM.