マツモト　エツコ   MATSUMOTO Etsuko   松本　悦子    所属   医学部 医学科（東京女子医科大学病院）    職種   教授・基幹分野長
論文種別	原著
言語種別	英語
査読の有無	査読なし
表題	Geographic variation in bronchoscopy use across Japan: A nationwide analysis using administrative claims data.
掲載誌名	正式名：Respiratory investigation 略　 称：Respir Investig ISSNコード：22125353/22125345
掲載区分	国外
巻・号・頁	63(6),pp.1174-1178
著者・共著者	Tomohiro Akaba†, Ken Arimura, Keiko Kan-O, Miki Kubo, Mitsuko Kondo, Musashi Ueda, Osamitsu Yagi, Atsushi Kurokawa, Naoko Kawashima, Yutaro Horie, Yuno Shiota, Etsuko Tagaya
担当区分	最終著者
発行年月	2025/11
概要	Bronchoscopy is a widely used diagnostic procedure in respiratory medicine. Despite recent advances in techniques and an ongoing aging population, detailed information regarding current bronchoscopy procedural patterns and practice settings remains limited for Japan. We analyzed bronchoscopic procedure volumes and settings across 47 Japanese prefectures over the 2023 fiscal year, using NDB Open Data. A total of 177,317 procedures were performed, with a nationwide rate of 142.6 per 100,000 population. Of these, 78.8 % were conducted during inpatient care. The procedural rate and proportion of inpatient cases varied substantially by prefecture. No significant correlation was observed between population aging rate and procedure volume, but a moderate positive correlation was identified between procedure volume and the density of board-certified respiratory specialists (Spearman's ρ = 0.517, p < 0.001). This nationwide analysis highlights the substantial regional variations in bronchoscopy practices across Japan and suggests a possible role of specialist distribution in determining access to the procedure.
DOI	10.1016/j.resinv.2025.09.017
PMID	40992123