Value of serum pepsinogen ratio screening for early gastric cancer and precancerous lesions in Youcheng area

Figure 1 Pepsinogen ratio and Helicobacter pylori-positive rates of three groups of patients. A: Pepsinogen ratio of three groups of patients; B: Helicobacter pylori-positive rates of three groups of patients. ^aP < 0.05 and ^bP < 0.01 in the inter-group comparison or in the comparison with benign lesions. PGR: Pepsinogen ratio; GC: Gastric cancer; HP: Helicobacter pylori.