Maternal pre-pregnancy body mass index and related factors: A cross-sectional analysis from the Japan Environment and Children’s Study

• Yasuaki Saijo ,

  Roles Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft

  * E-mail: y-saijo@asahikawa-med.a.c.jp

  Affiliation Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan

  https://orcid.org/0000-0002-6211-8202

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• Eiji Yoshioka,

  Roles Investigation, Writing – review & editing

  Affiliation Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan

  https://orcid.org/0000-0003-3316-1057

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• Yukihiro Sato,

  Roles Writing – review & editing

  Affiliation Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan

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• Yuki Kunori,

  Roles Conceptualization, Writing – review & editing

  Affiliation Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan

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• Tomoko Kanaya,

  Roles Writing – review & editing

  Affiliation Department of Social Medicine, Asahikawa Medical University, Sapporo, Hokkaido, Japan

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• Kentaro Nakanishi,

  Roles Writing – review & editing

  Affiliation Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan

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• Yasuhito Kato,

  Roles Writing – review & editing

  Affiliation Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan

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• Ken Nagaya,

  Roles Writing – review & editing

  Affiliation Division of Neonatology, Perinatal Medical Center, Asahikawa Medical University Hospital, Asahikawa, Hokkaido, Japan

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• Satoru Takahashi,

  Roles Writing – review & editing

  Affiliation Department of Pediatrics, Asahikawa Medical University, Asahikawa, Hokkaido, Japan

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• Yoshiya Ito,

  Roles Investigation, Writing – review & editing

  Affiliation Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Hokkaido, Japan

  https://orcid.org/0000-0001-7905-6661

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• Hiroyoshi Iwata,

  Roles Writing – review & editing

  Affiliation Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan

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• Takeshi Yamaguchi,

  Roles Writing – review & editing

  Affiliation Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan

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• Chihiro Miyashita,

  Roles Writing – review & editing

  Affiliation Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan

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• Sachiko Itoh,

  Roles Writing – review & editing

  Affiliation Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan

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• Reiko Kishi,

  Roles Investigation, Writing – review & editing

  Affiliation Center for Environmental and Health Sciences, Hokkaido University Sapporo, Hokkaido, Japan

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•  [ ... ],
• the Japan Environment and Children’s Study (JECS) Group

  ¶Membership of the JECS group is provided in the Acknowledgments.

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