McCall, Stephen J.Henriquez, DaciaEdwards, Hellen McKinnonvan den Akker, ThomasBloemenkamp, Kitty W. M.van der Bom, JohannaBonnet, Marie-PierreDeneux-Tharaux, CatherineDonati, SerenaGillissen, AdaKurinczuk, Jennifer J.Li, ZhuoyangMaraschini, AliceSeco, AurélienSullivan, ElizabethStanworth, SimonKnight, Marian2021-05-042021-05-042021-01-22McCall, S J, Henriquez, D, Edwards, H M, van den Akker, T, Bloemenkamp, K W M, van der Bom, J, Bonnet, M-P, Deneux-Tharaux, C, Donati, S, Gillissen, A, Kurinczuk, J J, Li, Z, Maraschini, A, Seco, A, Sullivan, E, Stanworth, S & Knight, M 2021, 'A total blood volume or more transfused during pregnancy or after childbirth : Individual patient data from six international population-based observational studies', PloS ONE, vol. 16, no. 1, e0244933. https://doi.org/10.1371/journal.pone.02449331932-6203RIS: urn:E9EB3CF925DA914D9BD95A3D78C15774ORCID: /0000-0003-0078-7010/work/93483277https://hdl.handle.net/2164/16373Acknowledgments This formed part of Stephen McCall’s DPhil in Population Health, University of Oxford. Funding: SM was funded by the Medical Research Council (UK) and the Nuffield Department of Population Health, University of Oxford. EPIMOMS was funded by a grant from the French National Research Agency (ANR) and the Ile-de-France Regional Health Agency. The Italian study was funded by the Italian Ministry of Health. The AMOSS study “Life-threatening massive obstetric haemorrhage requiring rapid, high-volume blood transfusion” was funded by the Australian Red Cross Blood Service and the Royal Hospital for Women Foundation. The TeMpOH-1 study in the Netherlands was funded by a grant from Sanquin Research, grant No. PPOC-11-032.15572666engSDG 3 - Good Health and Well-beingR MedicineSupplementary InformationRJournal article10.1371/journal.pone.0244933161