Appropriate definition of childbirth using Japanese administrative database: a cross-sectional cohort validation study.

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Bibliographic Details
Title: Appropriate definition of childbirth using Japanese administrative database: a cross-sectional cohort validation study.
Authors: Koizumi M; Department of Diabetes and Endocrinology, Nara Medical University, 840 Shijo- cho, Kashihara, Nara, 634-8522, Japan., Nakajima H; Department of Diabetes and Endocrinology, Nara Medical University, 840 Shijo- cho, Kashihara, Nara, 634-8522, Japan. Hiroki.nakajima@naramed-u.ac.jp., Nishioka Y; Department of Diabetes and Endocrinology, Nara Medical University, 840 Shijo- cho, Kashihara, Nara, 634-8522, Japan. y_n@naramed-u.ac.jp.; Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan. y_n@naramed-u.ac.jp., Morita E; Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan., Myojin T; Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan.; Department of Community Health and Preventive Medicine, Hamamatsu University School of Medicine, Shizuoka, Japan., Noda T; Department of Hygiene and Public Health, Kansai Medical University, Osaka, Japan., Imamura T; Department of Public Health, Health Management and Policy, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8521, Japan., Takahashi Y; Department of Diabetes and Endocrinology, Nara Medical University, 840 Shijo- cho, Kashihara, Nara, 634-8522, Japan.
Source: BMC pregnancy and childbirth [BMC Pregnancy Childbirth] 2026 Feb 11; Vol. 26 (1). Date of Electronic Publication: 2026 Feb 11.
Publication Type: Journal Article; Validation Study
Journal Info: Publisher: BioMed Central Country of Publication: England NLM ID: 100967799 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2393 (Electronic) Linking ISSN: 14712393 NLM ISO Abbreviation: BMC Pregnancy Childbirth Subsets: MEDLINE
Database: MEDLINE Ultimate
Description
ISSN:1471-2393
DOI:10.1186/s12884-026-08797-9