Table 1.

Diagnostic yield of H. pylori infection status on endoscopy

	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%)

^*Analyzed cases: n = 462. ^**Analyzed cases: n = 77. 95% confidence interval values are given in parentheses.

Abbreviation: H. pylori, Helicobacter pylori.