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Table 1 Diagnostic yield of H. pylori infection status on endoscopy

From: Accuracy of endoscopic diagnosis of Helicobacter pyloriinfection according to level of endoscopic experience and the effect of training

  H. pylori-uninfected H. pylori-infected H. pylori-eradicated
All physicians* (n = 6) 88.9% (82.3–93.6%) 62.1% (55.3–68.7%) 55.8% (46.1–65.1%)
Individual physicians**    
Beginner 1 82.6% (61.2–95.0%) 55.3% (38.3–71.4%) 37.5% (15.2–64.6%)
Beginner 2 90.9% (70.8–98.9%) 54.8% (36.0–72.7%) 50.0% (29.1–70.9%)
Intermediate 1 91.3% (72.0–98.9%) 67.6% (49.5–82.6%) 65.0% (40.8–84.6%)
Intermediate 2 82.6% (61.2–95.0%) 66.7% (49.0–81.4%) 66.7% (49.0–81.4%)
Advanced 1 90.5% (69.6–98.8%) 63.9% (46.2–79.2%) 50.0% (27.2–72.8%)
Advanced 2 95.7% (78.1–99.9%) 64.1% (47.2–78.8%) 80.0% (51.9–95.7%)
  1. *Analyzed cases: n = 462. **Analyzed cases: n = 77. 95% confidence interval values are given in parentheses.
  2. Abbreviation: H. pylori, Helicobacter pylori.