Effect of caesarean birth on perinatal mortality for singleton breech presentation in spontaneous preterm labour—A target trial emulation using Scottish health record data

• Robin Alexander ,

  Contributed equally to this work with: Robin Alexander, Swetha Bhaskar

  Roles Data curation, Formal analysis, Methodology, Validation, Visualization, Writing – original draft

  * E-mail: rnaa1@st-andrews.ac.uk (RA); holger.unger@menzies.edu.au (HWU)

  Affiliation Research Fellow in Medical Statistics, Division of Population and Behavioural Sciences, School of Medicine, University of St Andrews, St Andrews, United Kingdom

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• Swetha Bhaskar ,

  Contributed equally to this work with: Robin Alexander, Swetha Bhaskar

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

  Affiliations Consultant Obstetrician and Gynaecologist, Victoria Hospital, Kirkcaldy, United Kingdom, Senior Lecturer, School of Medicine, St Andrews University, St Andrews, United Kingdom, Honorary Lecturer, School of Medicine, University of Dundee, Dundee, United Kingdom

  ⨯
• Amaya Azcoaga-Lorenzo,

  Roles Supervision, Writing – review & editing, Methodology

  Affiliations Honorary Senior Lecturer, Division of Population and Behavioural Sciences, School of Medicine, University of St Andrews, St Andrews, United Kingdom, General Practitioner, Los Pintores Primary Health Center (SERMAS), Madrid, Spain, Health Research Institute-Fundación Jiménez Díaz University Hospital, Universidad Autónoma de Madrid (IIS-FJD, UAM), Madrid, Spain

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• Adeniyi Francis Fagbamigbe,

  Roles Formal analysis, Writing – review & editing, Data curation

  Affiliation Associate Professor in Medical Statistics, Centre for Healthcare and Community, Coventry University, Coventry, United Kingdom

  ⨯
• Clarine Y.C. Chow,

  Roles Data curation, Writing – review & editing

  Affiliation Resident Doctor, Stockport NHS Foundation Trust, Stockport, United Kingdom

  ⨯
• Kevin K. W. Kuan,

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

  Affiliation Resident Physician, Department of Obstetrics and Gynaecology, University of Toronto, Toronto, Canada

  https://orcid.org/0000-0002-5586-5752

  ⨯
• Sarah J. Stock,

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

  Affiliation Honorary Professor in Maternal and Fetal Health, Usher Institute, Centre for Medical Informatics, University of Edinburgh, Edinburgh, United Kingdom

  ⨯
• Stefan A. Unger,

  Roles Supervision, Validation, Writing – review & editing, Methodology

  Affiliations Honorary Professor in Maternal and Fetal Health, Usher Institute, Centre for Medical Informatics, University of Edinburgh, Edinburgh, United Kingdom, Honorary Senior Clinical Lecturer, Department of Child Life and Health, University of Edinburgh, Edinburgh, United Kingdom, Paediatric Respiratory Consultant, Department of Respiratory Medicine, Royal Hospital for Children and Young People, NHS Lothian, Edinburgh, United Kingdom

  ⨯
• Ben Swallow,

  Roles Methodology, Supervision, Writing – review & editing, Formal analysis

  Affiliation Lecturer in Statistics, School of Mathematics and Statistics, University of St Andrews, St Andrews, United Kingdom

  ⨯
• Colin McCowan,

  Roles Formal analysis, Methodology, Project administration, Resources, Supervision, Validation, Writing – review & editing, Data curation

  Affiliation Professor in Health Data Science, Division of Population and Behavioural Sciences, School of Medicine, University of St Andrews, St Andrews, United Kingdom

  ⨯
• Holger W. Unger

  Roles Conceptualization, Funding acquisition, Methodology, Project administration, Writing – original draft

  * E-mail: rnaa1@st-andrews.ac.uk (RA); holger.unger@menzies.edu.au (HWU)

  Affiliations Associate Professor, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia, Honorary Senior Clinical Lecturer, Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom, Honorary Senior Research Fellow, Department of Infectious Diseases, Doherty Institute, University of Melbourne, Melbourne, Victoria, Australia, Consultant Obstetrician and Gynaecologist, Department of Obstetrics and Gynaecology, Royal Darwin Hospital, Darwin, Australia

  https://orcid.org/0000-0001-6347-536X

  ⨯