TABLE 1.
Diagnostic test | No. of samples
|
% (95% confidence interval)
|
||||||||
---|---|---|---|---|---|---|---|---|---|---|
Total | True positive | False positive | True negative | False negative | Sensitivity | Specificity | Positive predictive value | Negative predictive value | Accuracy | |
Microscopy | 99 | 55 | 0 | 31 | 13 | 80.9 (69.2-89.0) | 100.0 (83.3-100.0) | 100.0 (91.9-100.0) | 70.5 (54.6-82.8) | 86.9 (78.6-92.8) |
SDHO MTB | 99 | 14 | 3 | 28 | 54 | 20.6 (12.1-32.5) | 90.3 (73.1-97.5) | 82.4 (55.8-95.3) | 34.1 (24.3-45.5) | 42.4 (32.5-52.8) |
P | <0.000001 | NSa | NDb | <0.0001 | <0.000001 |
NS, not significant.
ND, not determined.