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Table 2 The comparison of Urease test and histopathology with the presence and absence of PPI.

From: Role of rapid urease test and histopathology in the diagnosis of Helicobacter pylori infection in a developing country

Test Sensitivity (95% C.I.) Specificity (95% C.I.) PPV (95% C.I.) NPV (95% C.I.)
Urease Test with PPI 43.3% (30.9–50.6%) 86.4% (69.5–96.2%) 81.3% (58–94.8%) 52.8% (42.4–58.3%)
Urease Test without PPI 71.9% (59.2–80.7%) 80% (63.7–91.3%) 82.1% (67.6–92.3%) 69% (55–78.7%)
  1. *95% confidence interval (CI) are given in brackets