About the Authors

Rebecca C. Richmond

Affiliations School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom, MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, United Kingdom

Oleg Skugarevsky

Affiliation Psychiatry and Medical Psychology Department, Belarussian State Medical University, Minsk, Belarus

Seungmi Yang

Affiliation Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, Canada

Michael S. Kramer

Affiliation Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, Canada

Kaitlin H. Wade

Affiliations School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom, MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, United Kingdom

Rita Patel

Affiliation School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom

Natalia Bogdanovich

Affiliation The National Research and Applied Medicine Mother and Child Centre, Minsk, Belarus

Konstantin Vilchuck

Affiliation The National Research and Applied Medicine Mother and Child Centre, Minsk, Belarus

Natalia Sergeichick

Affiliation The National Research and Applied Medicine Mother and Child Centre, Minsk, Belarus

George Davey Smith

Affiliations School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom, MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, United Kingdom

Emily Oken

Affiliation Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and the Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America

Richard M. Martin

Richard.martin@bristol.ac.uk

Affiliations School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom, MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, United Kingdom, National Institute of Health Research (NIHR) Bristol Biomedical Research Unit in Nutrition, University Hospitals Bristol NHS Trust and University of Bristol, Bristol, United Kingdom

Competing Interests

Emily Oken has given an invited talk for Nestle Nutrition Institute in 2011 on secular trends in birth weight. Richard M. Martin gave an invited talk for the Nestle Nutrition Institute in 2010 on the role of the insulin-like growth factor system in growth and chronic disease risk. Michael S. Kramer has received unrelated meeting expenses from the Nestle Nutrition Institute. All other authors declare no conflict of interest. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MK GDS EO RMM. Performed the experiments: OS RP NB KV NS. Analyzed the data: RCR. Contributed reagents/materials/analysis tools: SY KHW. Wrote the paper: RCR RMM.