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Contingency (2 × 2) table of the diagnostic accuracy of nonsynonymous pncA mutations for detecting pyrazinamide-resistant M. tuberculosis isolates
| Mutation observed | No. of isolates with phenotype |
|
|---|---|---|
| Pyrazinamide resistant | Pyrazinamide susceptible | |
| Nonsynonymous pncA mutation | 6 | 4 |
| Wild-type pncA or synonymous mutation | 1 | 155 |
