About the Authors

Kathryn R. Martin

kathryn.martin@abdn.ac.uk

Affiliations Epidemiology Group, School of Medicine and Dentistry, University of Aberdeen, Aberdeen, United Kingdom, Medical Research Council Unit for Lifelong Health and Ageing at University College London, London, United Kingdom, Laboratory of Epidemiology and Population Sciences, National Institute of Aging, National Institutes of Health, Bethesda, Maryland United States of America

Rachel Cooper

Affiliation Medical Research Council Unit for Lifelong Health and Ageing at University College London, London, United Kingdom

Tamara B. Harris

Affiliation Laboratory of Epidemiology and Population Sciences, National Institute of Aging, National Institutes of Health, Bethesda, Maryland United States of America

Soren Brage

Affiliation Medical Research Council Epidemiology Unit, School of Clinical Medicine, Institute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom

Rebecca Hardy

Affiliation Medical Research Council Unit for Lifelong Health and Ageing at University College London, London, United Kingdom

Diana Kuh

Affiliation Medical Research Council Unit for Lifelong Health and Ageing at University College London, London, United Kingdom

on behalf of the NSHD scientific and data collection team

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

¶ Membership of the NSHD scientific and data collection teams is provided in the Acknowledgments.

Conceived and designed the experiments: KRM RC DK RH. Analyzed the data: KRM. Contributed to the writing of the manuscript: KRM RC. Acquisition of data: DK KRM RH RC SB. Interpretation of data: KRM RC TBH SB RH DK. Revising the article critically for important intellectual content: KRM RC TBH SB RH DK.