Table 2 Comparison of different methods in the diagnosis of H. pylori infection
Test | Gold standard | Sensitivity | Specificity | Positive predictive value (%) | Negative predictive value (%) | Accuracy (%) | |
|---|---|---|---|---|---|---|---|
Positive | Negative | ||||||
Histology | 21 | 69 | 80.9 | 94.2 | 80.90 | 94 | 91.10 |
Rapid Urease Test (RUT) | 34 | 56 | 82.3 | 87.5 | 80.00 | 86 | 85.50 |
Serology (IgG ELISA) | 66 | 24 | 89.3 | 54.1 | 84.20 | 65.00 | 80 |
Stool antigen test (HpSAg) | 39 | 51 | 53.8 | 88.2 | 78 | 71 | 73.30 |