Test characteristics for detecting Helicobacter pylori infection*
| Diagnostic standards | Tests | Sensitivity (95% CI) | Specificity (CI) | +LR | −LR |
|---|---|---|---|---|---|
| *13C-UBT = 13C-urea blood test; RUT = rapid urease testing. LRs defined in glossary and calculated from data in article.†Calculated from data supplied by author.‡CIs provided by author. | |||||
| Histological testing | 13C-UBT | 89% (85 to 93) | 96% (94 to 98) | 19.9 | 0.1 |
| RUT | 87% (75 to 95)† | 96% (87 to 99)† | 19.4† | 0.1† | |
| Histological testing and RUT | 13C-UBT | 94% (87 to 100)‡ | 91% (85 to 97)‡ | 10.4 | 0.1 |
| Histological testing or RUT | 13C-UBT | 88% (80 to 96)‡ | 98% (95 to 100)‡ | 44.0 | 0.1 |