About the Authors

Stephen J. McCall

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft

sm227@aub.edu.lb

Affiliations National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Headington, Oxford, United Kingdom, Center for Research on Population and Health, Faculty of Health Sciences, American University of Beirut, Riad El Solh, Beirut, Lebanon

Dacia Henriquez

Contributed equally to this work with: Dacia Henriquez, Hellen McKinnon Edwards

Roles Data curation, Investigation, Writing – review & editing

Affiliations Department of Obstetrics and Gynaecology, Leiden University Medical Centre, Leiden, Netherlands, Jon J van Rood Center for Clinical Transfusion Research, Sanquin Research & Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands

Hellen McKinnon Edwards

Contributed equally to this work with: Dacia Henriquez, Hellen McKinnon Edwards

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Obstetrics and Gynaecology, Copenhagen University Hospital Herlev, Herlev, Denmark

Thomas van den Akker

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

Affiliations National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Headington, Oxford, United Kingdom, Department of Obstetrics and Gynaecology, Leiden University Medical Centre, Leiden, Netherlands

Kitty W. M. Bloemenkamp

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Obstetrics, Birth Centre Wilhelmina’s Children Hospital, Division Woman and Baby, University Medical Centre Utrecht, Utrecht, Netherlands

Johanna van der Bom

Roles Data curation, Funding acquisition, Writing – review & editing

Affiliation Jon J van Rood Center for Clinical Transfusion Research, Sanquin Research & Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands

Marie-Pierre Bonnet

Roles Investigation, Writing – review & editing

Affiliations Department of Anaesthesiology and Critical Care, Armand Trousseau Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France, INSERM U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Research Center for Epidemiology and Biostatistics (CRESS), Paris University, Paris, France

Catherine Deneux-Tharaux

Roles Data curation, Funding acquisition, Investigation, Writing – review & editing

Affiliation INSERM U1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Research Center for Epidemiology and Biostatistics (CRESS), Paris University, Paris, France

Serena Donati

Roles Data curation, Funding acquisition, Investigation, Writing – review & editing

Affiliation National Centre for Disease Prevention and Health Promotion, Istituto Superiore di Sanità - Italian National Institute of Health, Rome, Italy

Ada Gillissen

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

Affiliations Department of Obstetrics and Gynaecology, Leiden University Medical Centre, Leiden, Netherlands, Jon J van Rood Center for Clinical Transfusion Research, Sanquin Research & Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, Netherlands

Jennifer J. Kurinczuk

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

Affiliation National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Headington, Oxford, United Kingdom

Zhuoyang Li

Roles Data curation, Investigation, Writing – review & editing

Affiliation Faculty of Health and Medicine, The University of Newcastle, Newcastle, Australia

Alice Maraschini

Roles Data curation, Investigation, Writing – original draft

Affiliation National Centre for Disease Prevention and Health Promotion, Istituto Superiore di Sanità - Italian National Institute of Health, Rome, Italy

Aurélien Seco

Roles Data curation, Investigation, Writing – original draft

Affiliations Department of Anaesthesiology and Critical Care, Armand Trousseau Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France, Clinical Research Unit of Paris Descartes Necker Cochin, APHP, Paris, France

Elizabeth Sullivan

Roles Data curation, Funding acquisition, Investigation, Writing – review & editing

Affiliation Faculty of Health and Medicine, The University of Newcastle, Newcastle, Australia

Simon Stanworth

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

Affiliations Oxford University Hospitals NHS Trust, Department of Haematology, Oxford, United Kingdom, NIHR BRC Blood Theme, University of Oxford, Oxford, United Kingdom, NHS Blood and Transplant, John Radcliffe Hospital, Oxford, United Kingdom

Marian Knight

Roles Conceptualization, Data curation, Funding acquisition, Investigation, Methodology, Supervision, Writing – review & editing

Affiliation National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Headington, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.