First stage progression in women with spontaneous onset of labor: A large population-based cohort study

• Louise Lundborg ,

  Roles Conceptualization, Methodology, Project administration, Software, Validation, Writing – original draft, Writing – review & editing

  * E-mail: louise.lundborg@ki.se

  Affiliation Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden

  http://orcid.org/0000-0002-2407-2151

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• Katarina Åberg,

  Roles Writing – review & editing

  Affiliation Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden

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• Anna Sandström,

  Roles Conceptualization, Writing – review & editing

  Affiliations Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, Division of Obstetrics and Gynecology, Department of Women´s and Children´s Health, Karolinska University Hospital and Institutet, Stockholm, Sweden, Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden, Department of Obstetrics and Gynecology, Oregon Health & Science University School of Medicine, Portland, Oregon, United States of America

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• Andrea Discacciati,

  Roles Methodology, Validation, Writing – original draft

  Affiliations Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden, Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden

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• Ellen L. Tilden,

  Roles Methodology, Supervision, Writing – review & editing

  Affiliations Department of Obstetrics and Gynecology, Oregon Health & Science University School of Medicine, Portland, Oregon, United States of America, Department of Nurse-Midwifery, Oregon Health & Science University School of Nursing, Portland, Oregon, United States of America

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• Olof Stephansson,

  Roles Conceptualization, Methodology, Project administration, Supervision, Validation, Writing – review & editing

  Affiliations Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, Division of Obstetrics and Gynecology, Department of Women´s and Children´s Health, Karolinska University Hospital and Institutet, Stockholm, Sweden

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• Mia Ahlberg

  Roles Conceptualization, Project administration, Resources, Supervision, Validation, Writing – original draft

  Affiliations Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, Division of Obstetrics and Gynecology, Department of Women´s and Children´s Health, Karolinska University Hospital and Institutet, Stockholm, Sweden

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