2020 Volume 58 Issue 2 Pages 93-103
There were 478 candidates, who underwent not only a barium X-ray examination but also a combination test of serum anti-Helicobacter pylori IgG antibody (H.pylori test) and serum pepsinogen level by PG method, which is called the test of risk stratification for gastric cancer. The cut-off level was less than 4.0 U/mL for H.pylori test (Wako Pure Chemical Corporation), and Miki's criteria was adopted for PG method. The candidates were divided into five groups, A (−/−) 312, B (+/−) 78, C (+/+) 28, D (−/+) 3, and E (57), depending on the results of H.pylori and PG test (H.pylori /PG) or whether there is a previous history of eradication therapy. The group A by this method is seemingly expected to have non gastritis. The candidates in group A, however, were divided into two groups depending on the X-ray results. One group (252, 81%) comprises candidates with no gastritis, and the other group (60, 19%) comprises those who have. The latter group, with 60 candidates, may be called pseudo-group A. Twelve candidates in pseudo-group A exhibited a high level of PGII, which is more than 14 ng/mL, or a low level of PGI/PGII, which is less than 5 ng/mL. When those candidates were excluded from group A, pseudo-group A decreased in number.
