Abstract
ABC classification for gastric cancer risk evaluation (ABC risk examination) is a serological test for predicting the incidence of gastric cancer by combining serum anti-Helicobacter pylori (Hp) antibody titer with the Pepsinogen test. Our institute introduced the ABC risk examination as an optional examination of human dock in 2011.4 and a total of 993 patients have undergone this test by 2012.3. Thereafter, we investigated how ABC risk examination influenced the consultation decision concerning gastric cancer screening by a mail-back questionnaire study. There were 423 replies to the 995 questionnaires sent out and 365 subjects aged over 40 years old were included in this study. As a result of recognition of their own risk for gastric cancer through ABC, 42.0% of Group A (Hp-,PG-), 57.6% of Group B (Hp+, PG-) and 82.7% of Group C+D (PG+) understood the importance of gastric cancer screening. This tendency was present in the subjects who had not received the gastric cancer screening yet. The result suggested that ABC risk examination might contribute to enhancing the motivation for participating in the gastric cancer screening program. Therefore, we should construct an integrated system of ABC risk evaluation with the gastric cancer screening program to lead the examinees to receive the annual screening examination and also direct them to understand the meaning of gastric cancer risk evaluation.
