title: [Characteristics of group A patients according to the ABC classification for gastric cancer risk screening].
abstract: In the ABC classification for gastric cancer risk screening, group A (Helicobacter pylori infection-negative, pepsinogen [PG]-negative) patients are assumed to be at low risk, but some patients do have atrophic gastritis and H. pylori infection. This study aimed to identify the characteristics of group A patients. Healthy adults in Yamagata City who underwent barium radiography and ABC classification participated in the survey. Patient radiographs were randomly interspersed and reviewed by two gastroenterologists who were blinded to the H. pylori and PG statuses. Group A patients (n=1462) was subclassified as follows: atrophic gastritis group, 21.5%; intermediate group, 15.7%; and no atrophic gastritis group, 62.8%. Elderly subjects and those with H. pylori antibody titers of 3.0-9.9U/ml should be carefully evaluated while interpreting the results of the ABC classification for gastric cancer risk screening.
authors.affiliation: Department of Gastroenterology, Faculty of Medicine, Yamagata University.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Yoshizawa
authors.forename: Harufumi
authors.initials: H
authors.lastname: Oizumi
authors.forename: Yu
authors.initials: Y
authors.lastname: Sasaki
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Abe
authors.forename: Nana
authors.initials: N
authors.lastname: Kanno
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Sakuta
authors.forename: Makoto
authors.initials: M
authors.lastname: Yagi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Iwano
authors.forename: Takeshi
authors.initials: T
authors.lastname: Sato
authors.forename: Eiki
authors.initials: E
authors.lastname: Nomura
authors.forename: Shoichi
authors.initials: S
authors.lastname: Nishise
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Ueno
mesh_terms: D000328:Adult; D000368:Aged; D015331:Cohort Studies; D055088:Early Detection of Cancer / Q000379:methods*; D005260:Female; D016481:Helicobacter Infections / Q000150:complications; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D020116:Pepsinogen A / Q000032:analysis; D013274:Stomach Neoplasms / Q000175:diagnosis*
chemical_list: D020116:Pepsinogen A