About the Authors

Manisha Nair

manisha.nair@npeu.ox.ac.uk

Affiliation National Perinatal Epidemiology Unit (NPEU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom

Proochista Ariana

Affiliation Nuffield Department of Population Health, & Department of International Development, University of Oxford, Oxford, United Kingdom

Eric O. Ohuma

Affiliation Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Oxford, United Kingdom

Ron Gray

Affiliation National Perinatal Epidemiology Unit (NPEU), Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom

Bianca De Stavola

Affiliation Department of Medical Statistics & Faculty of Epidemiology and Public Health, London School of Hygiene and Tropical Medicine, London, United Kingdom

Premila Webster

Affiliation Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MN PA PW RG. Performed the experiments: MN. Analyzed the data: MN EOO BDS. Wrote the paper: MN.