Table 2.
Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of PCR
| Value | 16S rRNA gene | glmM gene | cagA gene |
|---|---|---|---|
| Sensitivity | 100% | 100% | 100% |
| Specificity | 74.1% | 81.5% | 81.5% |
| PPV | 68.2% | 75% | 75% |
| NPV | 100% | 95.7% | 95.7% |
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