Endoscopists and endoscopic assistants’ qualifications, but not their biopsy rates, improve gastric precancerous lesions detection rate

Figure 4 Relationships between endoscopists’ and endoscopic assistants’ qualifications and endoscopic detection. A: The relationship between endoscopist qualifications and endoscopic detection is shown. The horizontal axis represents different qualifications of the endoscopist (low, moderate, high/very high), and the vertical axis represents endoscopic detection rate of different diseases; B: The relationship between the endoscopists’ qualifications and the detection rates of gastric precancerous lesions in different anatomical areas of the stomach is shown. The horizontal axis represents different qualifications of the endoscopist (low, moderate, high/very high), and the vertical axis represents gastroscopic detection rate of gastric precancerous lesions; C: The relationship between endoscopic assistant qualifications and endoscopic detection is shown. The horizontal axis represents different qualifications of the endoscopist (low, moderate, high/very high), and the vertical axis represents gastroscopic detection by low- and moderate-level qualified endoscopists. ρ: Spearman’s correlation coefficient. P < 0.05 indicates statistical significance. GPCs: Gastric precancerous conditions; GPLs: Gastric precancerous lesions.