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Volume 31, Number 6—June 2025

Research

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

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 27, 2025
Page reviewed: May 27, 2025
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