TABLE 3.
Results of multiplex nested PCR compared with those of single nested PCR for M. tuberculosis detection
| Result by multiplex nested PCR | No. (%) of samples with the following single nested PCR resulta: |
||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 35 (36.84) | 1 (1.05) | 36 (37.89) |
| Negative | 3 (3.16) | 56 (58.95) | 59 (62.11) |
| Total | 38 (40.00) | 57 (60.00) | 95 (100.00) |
a
By use of gold standard 1 for the single nested PCR. Sensitivity, 92.11% (95% confidence interval, 82.3 to 99.4); specificity, 98.25%; PPV, 97.22%; NPV, 94.92%.