Table 3. Sensitivity, specificity, positive and negative predictive values, accuracy and confidence interval for the 5 methods.
Tests | Sensitivity (CI 95%) | Specificity (CI 95%) | Positive predictive value (%) | Negative predictive value (%) | Accuracy (%) |
---|---|---|---|---|---|
Rapid urease | 100 (92.4 to 100) | 84.2 (71.3 to 91.9) | 91.2 | 100 | 93.7 |
Histology | 93.1 (82.2 to 97.5) | 100 (92.4 to 100) | 100 | 90.5 | 95.8 |
Culture | 79.3 (65.7 to 88.4) | 100 (92.4 to 100) | 100 | 76 | 87.5 |
Serology | 93.1 (82.2 to 97.5) | 78.9 (65.3 to 88.1) | 87.8 | 88.2 | 87.5 |
13C-UBT | 93.1 (82.2 to 97.5) | 78.9 (65.3 to 88.1) | 87.8 | 88.2 | 87.5 |