Table 5.
Diagnostic accuracy of direct microscopy and culture for detection of Mycobacterium tuberculosis (MTB) and non-tuberculous Mycobacteria (NTM) after treatment with NALC-NaOH and pancreatin-CPC DDMs.
| Methods | Culture | Sensitivity (%) | 95% C.I. | Specificity (%) | 95% C.I. | PPV (%) |
95% C.I. | NPV (%) |
95% C.I. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Positive | Negative | ||||||||||
| * Direct LED-FM smear | Positive | 90 | 1 | 60.4 | 52.04–68.21 | 99.77 | 98.53–99.98 | 98.9 | 93.17–99.94 | 88.3 | 84.88–90.78 |
| Negative | 59 | 438 | |||||||||
| Pancreatin-CPC DDM | |||||||||||
| * LJ culture | Positive | 148 | 26 | 99.32 | 95.75–99.96 | 94.07 | 91.33–96 | 85.05 | 78.68–89.83 | 99.76 | 98.45–99.98 |
| Negative | 1 | 413 | |||||||||
* Number of specimens positive for Mycobacterium tuberculosis and non-tuberculous mycobacteria (n = 149) and negative for mycobacteria (n = 429) after treatment with NALC-NaOH DDM for calculating diagnostic accuracy of LJ culture.