About the Authors

Ulla Sovio

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Amanda J. Bennett

Affiliation Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom

Iona Y. Millwood

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

John Molitor

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Paul F. O'Reilly

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Nicholas J. Timpson

Affiliations Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom, The MRC Centre for Causal Analyses in Translational Epidemiology, Bristol University, Bristol, United Kingdom

Marika Kaakinen

Affiliations Institute of Health Sciences, University of Oulu, Oulu, Finland, Biocenter Oulu, University of Oulu, Oulu, Finland

Jaana Laitinen

Affiliation Finnish Institute of Occupational Health, Oulu, Finland

Jari Haukka

Affiliations National Public Health Institute, Helsinki, Finland, Biostatistics and Epidemiology Cluster, International Agency for Research on Cancer, Lyon, France

Demetris Pillas

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Ioanna Tzoulaki

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Jassy Molitor

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Clive Hoggart

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Lachlan J. M. Coin

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

John Whittaker

Affiliation London School of Hygiene and Tropical Medicine, University of London, London, United Kingdom

Anneli Pouta

Affiliation Department of Child and Adolescent Health, National Public Health Institute, Oulu, Finland

Anna-Liisa Hartikainen

Affiliation Department of Clinical Sciences/Obstetrics and Gynecology, University of Oulu, Oulu, Finland

Nelson B. Freimer

Affiliations Center for Neurobehavioral Genetics, University of California Los Angeles, Los Angeles, California, United States of America, The Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, California, United States of America, Department of Psychiatry, University of California Los Angeles, Los Angeles, California, United States of America

Elisabeth Widen

Affiliation Finnish Genome Center, University of Helsinki, Helsinki, Finland

Leena Peltonen

Affiliations Institute for Molecular Medicine (FIMM), University of Helsinki, Helsinki, Finland, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, United States of America, Wellcome Trust Sanger Institute, Cambridge, United Kingdom

Paul Elliott

Affiliation Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom

Mark I. McCarthy

Affiliations Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, United Kingdom, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom, Oxford NIHR Biomedical Research Centre, Churchill Hospital, Oxford, United Kingdom

Marjo-Riitta Jarvelin

m.jarvelin@imperial.ac.uk

Affiliations Department of Epidemiology and Public Health, Imperial College London, London, United Kingdom, Institute of Health Sciences, University of Oulu, Oulu, Finland, Biocenter Oulu, University of Oulu, Oulu, Finland, Department of Child and Adolescent Health, National Public Health Institute, Oulu, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: US NJT EW PE MIM MRJ. Performed the experiments: AJB. Analyzed the data: US JM PFO JM CH. Contributed reagents/materials/analysis tools: US AJB MK JL JH LJMC AP ALH NBF LP MIM MRJ. Wrote the paper: US AJB IYM JM PFO NJT MK JL JH DP IT JM CH LJMC JW AP ALH NBF EW LP PE MIM MRJ.