Performances relative to culture | Performances relative to final diagnosis | |||
---|---|---|---|---|
Sensitivity% | Specificity% | Sensitivity% | Specificity% | |
(95% CI) n | (95% CI) n | (95% CI) n | (95% CI) n | |
Xpert® MTB/RIF assay | 80.0 | 98.6 | 60.0 | 100.0 |
(57.8-92.5) | (94.7-99.9) | (42.3-75.4) | (96.6-100.0) | |
16/20 | 140/142 | 18/30 | 132/132 | |
Smear microscopy | 25.0 | 95.8 | 16.7 | 95.5 |
(10.8-47.3) | (90.9-98.3) | (6.9-34.0) | (90.2-98.1) | |
5/20 | 136/142 | 5/30 | 126/132 | |
Culture | - | - | 66.7 | 100.0 |
(48.7-80.9) | (96.6-100.0) | |||
20/30 | 132/132 | |||
p-valuea | 0.003 | 0.288 | 0.001 b | 0.041 b |
0.683 c | - | |||
0.0003 d | 0.041 d |