Figure 6  .

Changes in acid secretion in patients with gastric ulcer (GU) after H pylori eradication. In the H pylori positive patients with GU, the mean EGT value was significantly lower than that of H pylori negative controls. One month after the eradication, the mean EGT value increased significantly, and then decreased slightly but significantly at seven months. The value at seven months was not significantly different from the control value, but it was still higher than that before eradication. Vertical bars represent SD of the mean. *p<0.05, **p<0.01, NS, not significant.