Maternal B-vitamin and vitamin D status before, during, and after pregnancy and the influence of supplementation preconception and during pregnancy: Prespecified secondary analysis of the NiPPeR double-blind randomized controlled trial

• Keith M. Godfrey ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: kmg@mrc.soton.ac.uk

  ¶‡ KMG and PT share first authorship on this work. SYC and WSC are joint senior authors on this work.

  Affiliations MRC Lifecourse Epidemiology Centre, University of Southampton, University Hospital Southampton, Southampton, United Kingdom, NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton, NHS Foundation Trust, Southampton, United Kingdom

  https://orcid.org/0000-0002-4643-0618

  ⨯
• Philip Titcombe ,

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

  ¶‡ KMG and PT share first authorship on this work. SYC and WSC are joint senior authors on this work.

  Affiliation MRC Lifecourse Epidemiology Centre, University of Southampton, University Hospital Southampton, Southampton, United Kingdom

  https://orcid.org/0000-0002-7797-8571

  ⨯
• Sarah El-Heis,

  Roles Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

  Affiliations MRC Lifecourse Epidemiology Centre, University of Southampton, University Hospital Southampton, Southampton, United Kingdom, NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton, NHS Foundation Trust, Southampton, United Kingdom

  https://orcid.org/0000-0003-4277-7187

  ⨯
• Benjamin B. Albert,

  Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

  ⨯
• Elizabeth Huiwen Tham,

  Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore

  ⨯
• Sheila J. Barton,

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

  Affiliation MRC Lifecourse Epidemiology Centre, University of Southampton, University Hospital Southampton, Southampton, United Kingdom

  https://orcid.org/0000-0003-4963-4242

  ⨯
• Timothy Kenealy,

  Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing

  Affiliation Liggins Institute, University of Auckland, Auckland, New Zealand

  https://orcid.org/0000-0001-6002-4766

  ⨯
• Mary Foong-Fong Chong,

  Roles Conceptualization, Methodology, Writing – original draft, Writing – review & editing

  Affiliations Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore

  https://orcid.org/0000-0003-0587-2505

  ⨯
• Heidi Nield,

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

  Affiliation MRC Lifecourse Epidemiology Centre, University of Southampton, University Hospital Southampton, Southampton, United Kingdom

  ⨯
• Yap Seng Chong,

  Roles Conceptualization, Investigation, Writing – original draft, Writing – review & editing

  Affiliations Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Department of Obstetrics and Gynaecology, National University Hospital, Singapore

  ⨯
• Shiao-Yng Chan ,

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

  ¶‡ KMG and PT share first authorship on this work. SYC and WSC are joint senior authors on this work.

  Affiliations Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Department of Obstetrics and Gynaecology, National University Hospital, Singapore

  https://orcid.org/0000-0002-3530-3023

  ⨯
• Wayne S. Cutfield ,

  Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Writing – original draft, Writing – review & editing

  ¶‡ KMG and PT share first authorship on this work. SYC and WSC are joint senior authors on this work.

  Affiliations Liggins Institute, University of Auckland, Auckland, New Zealand, A Better Start, New Zealand National Science Challenge, Auckland, New Zealand

  ⨯
• NiPPeR Study Group

  ¶Members of the NiPPeR Study Group authors for the Medline citation are listed in the Acknowledgments.

  ⨯