Research Article

Diagnostic Accuracy of EndoFaster® and Narrow-Band Imaging Endoscopy in Patients with Impaired Gastric Acid Secretion: A Real-Time Prospective Study

Figure 3

Negative correlation between pH values and pepsinogen I (; 95% CI: (-0.8)-(-0.5); ). Pepsinogen I values are expressed in microgram per liter. μg/l.