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Disclaimer: Early release articles are not considered as final versions. Any changes will be reflected in the online version in the month the article is officially released.

Volume 31, Number 6—June 2025

Research

Prospective Multicenter Surveillance of Non–H. pylori Helicobacter Infections during Medical Checkups, Japan, 2022

Kengo Tokunaga1Comments to Author , Emiko Rimbara1Comments to Author , Toshihisa Tsukadaira, Katsuhiro Mabe, Koji Yahara, Hidekazu Suzuki, Tadashi Shimoyama, Mitsushige Sugimoto, Tadayoshi Okimoto, Hidenori Matsui, Masato Suzuki, Keigo Shibayama, Hiroyoshi Ota, Kazunari Murakami, and Mototsugu Kato
Author affiliation: Kyorin University School of Medicine, Tokyo, Japan (K. Tokunaga); National Institute of Infectious Diseases, Tokyo (E. Rimbara, K. Yahara, H. Matsui, M. Suzuki); Kenwakai Hospital, Iida, Japan (T. Tsukadaira); Mabe Goryokaku Gastrointestinal Endoscopy Clinic, Hakodate, Japan (K. Mabe); Tokai University School of Medicine, Isehara, Japan (H. Suzuki); Aomori General Health Examination Center, Aomori, Japan (T. Shimoyama); Oita University, Oita, Japan (M. Sugimoto, K. Murakami); Oita Prefectural Hospital, Oita (T. Okimoto); Nagoya University Graduate School of Medicine, Nagoya, Japan (K. Shibayama); Shinshu University School of Medicine, Matsumoto, Japan (H. Ota); Public Interest Foundation Hokkaido Cancer Society, Sapporo, Japan (M. Kato)

Main Article

Table 2

Infection status of patients in 4 hospitals in study of NHPH infections, Japan, 2022*

Infection status No. (%) patients
Total, n = 673 Hospital†
A, n = 100 B, n = 198 C, n = 199 D, n = 176
No Helicobacter infection 378 (56.2) 57 (57.0) 121 (61.1) 121 (60.8) 79 (44.9)
Posteradication‡ 254 (37.7) 35 (35.0) 72 (36.4) 59 (29.6) 88 (50.0)
H. pylori infection 21 (3.1) 6 (6.0) 2 (1.0) 5 (2.5) 8 (4.5)
H. suis infection 14 (2.1) 0 1 (0.5) 13 (6.5) 0
Non–H. suis NHPH infection 6 (0.9) 2 (2.0) 2 (1.0) 1 (0.5) 1 (0.6)

*NHPH, non–Helicobacter pylori Helicobacter. †Hospital A is in Hokkaido, B is in Tokyo, C is in Nagano, and D is in Okayama. ‡Patients who had previous H. pylori eradication therapy.

Main Article

1These authors contributed equally to this article.

Page created: March 31, 2025
Page updated: May 13, 2025
Page reviewed: May 13, 2025
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