Acute pain and analgesic requirement after vaginal childbirth with and without neuraxial labor analgesia–Retrospective cohort study

• Ayumi Maeda,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States of America

  https://orcid.org/0000-0002-6919-6465

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• Gen Shimada,

  Roles Data curation, Investigation, Methodology, Writing – review & editing

  Affiliation Department of General Surgery, Hernia Center, St. Luke’s International Hospital, Tokyo, Japan

  https://orcid.org/0000-0002-7089-229X

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• Nobuko Fujita,

  Roles Conceptualization, Investigation, Methodology, Writing – review & editing

  Affiliation Department of Anesthesia, St. Luke’s International Hospital, Tokyo, Japan

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• Rimu Suzuki,

  Roles Conceptualization, Data curation, Investigation, Writing – review & editing

  Affiliation Department of Anesthesia, St. Luke’s International Hospital, Tokyo, Japan

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• Michiko Yamanaka,

  Roles Investigation, Methodology, Writing – review & editing

  Affiliation Department of Integrated Women’s Health, Center for Medical Genetics, St. Luke’s International Hospital, Tokyo, Japan

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• Osamu Takahashi,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – review & editing

  Affiliation Graduate School of Public Health, St. Luke’s International University, Tokyo, Japan

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• Tokujiro Uchida,

  Roles Investigation, Methodology, Writing – review & editing

  Affiliation Department of Anesthesiology, Tokyo Medical and Dental University, Tokyo, Japan

  https://orcid.org/0000-0002-9474-0020

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• Yasuko Nagasaka

  Roles Investigation, Methodology, Writing – review & editing

  * E-mail: yasukonagasaka@gmail.com

  Affiliation Department of Anesthesia, Tokyo Women’s Medical University, Tokyo, Japan

  https://orcid.org/0000-0002-6259-3388

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