Figure 1.
Study flow of the subjects. Of 50 subjects, 12 were excluded because the causes of iron-deficiency anemia were found. Of 29 Helicobacter pylori (H. pylori)-infected subjects, six did not return after 4 weeks of treatment. Thus, only 23 H. pylori-infected subjects and nine non-infected subjects were analyzed. IDA, iron-deficiency anemia.