Cut off values, sensitivity, and specificity of the four probes used to detect resistance of Helicobacter pylori to macrolides with the DNA enzyme immunoassay
| Probe | Cut off value | Sensitivity (%) | Specificity (%) |
|---|---|---|---|
| WT | 0.9 | 100 | 97.6 |
| 2143C | 0.96 | ND | ND |
| 2143G | 0.6 | 100 | 100 |
| 2144G | 0.6 | 100 | 97.5 |
The cut off values were defined by using receiving operating characteristics curves, except for the 2143C probe (mean + 3 SD).
WT, wild type; ND, not determined.