About the Authors

Ian J. Douglas

ian.douglas@lshtm.ac.uk

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Krishnan Bhaskaran

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Rachel L. Batterham

Affiliations Centre for Obesity Research, Rayne Institute, Department of Medicine, University College London, London, United Kingdom, University College London Hospitals Bariatric Centre for Weight Management and Metabolic Surgery, London, United Kingdom, National Institute of Health Research, University College London Hospitals Biomedical Research Centre, London, United Kingdom

Liam Smeeth

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, United Kingdom

Competing Interests

I have read the journal's policy and the authors of this manuscript have the following competing interests: RLB has consulted for GlaxoSmithKline and received honoraria from Ethicon and Pfizer.

Author Contributions

Conceived and designed the experiments: IJD KB RLB LS. Analyzed the data: IJD KB. Wrote the first draft of the manuscript: IJD. Contributed to the writing of the manuscript: IJD KB RLB LS. Agree with the manuscript’s results and conclusions: IJD KB RLB LS. IJD had full access to all the data in the study and takes responsibility for the integrity of the data and accuracy of the data analysis. All authors have read, and confirm that they meet, ICMJE criteria for authorship.