About the Authors

Jana V. van Vliet-Ostaptchouk

j.v.van.vliet@umcg.nl

Affiliations Molecular Genetics, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands, Department of Endocrinology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands, Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

Timon W. van Haeften

Affiliation Department of Internal Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands

Gijs W. D. Landman

Affiliation Diabetes Centre, Isala Clinics, Zwolle, the Netherlands

Erwin Reiling

Affiliation Department of Molecular Cell Biology, Leiden University Medical Centre, Leiden, the Netherlands

Nanne Kleefstra

Affiliations Diabetes Centre, Isala Clinics, Zwolle, the Netherlands, Department of Internal Medicine, University Medical Center Groningen and University of Groningen, the Netherlands, Medical Research Group, Langerhans, Zwolle, the Netherlands

Henk J. G. Bilo

Affiliations Diabetes Centre, Isala Clinics, Zwolle, the Netherlands, Department of Internal Medicine, University Medical Center Groningen and University of Groningen, the Netherlands

Olaf H. Klungel

Affiliation Division of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht, the Netherlands

Anthonius de Boer

Affiliation Division of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, University of Utrecht, Utrecht, the Netherlands

Cleo C. van Diemen

Affiliation Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

Cisca Wijmenga

Affiliation Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

H. Marike Boezen

Affiliation Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

Jacqueline M. Dekker

Affiliations EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands, Department of Epidemiology and Biostatistics, VU University Medical Centre, Amsterdam, the Netherlands

Esther van 't Riet

Affiliations EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands, Department of Epidemiology and Biostatistics, VU University Medical Centre, Amsterdam, the Netherlands

Giel Nijpels

Affiliations EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands, Department of General Practice, VU University Medical Centre, Amsterdam, the Netherlands

Laura M. C. Welschen

Affiliations EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands, Department of General Practice, VU University Medical Centre, Amsterdam, the Netherlands

Hata Zavrelova

Affiliations EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands, Department of Ophthalmology, VU University Medical Center, Amsterdam, the Netherlands

Elinda J. Bruin

Affiliation Molecular Genetics, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

Clara C. Elbers

Affiliations Department of Medical Genetics (DBG) University Medical Center Utrecht, Utrecht, the Netherlands, Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands

Florianne Bauer

Affiliations Department of Medical Genetics (DBG) University Medical Center Utrecht, Utrecht, the Netherlands, Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands

N. Charlotte Onland-Moret

Affiliations Department of Medical Genetics (DBG) University Medical Center Utrecht, Utrecht, the Netherlands, Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands

Yvonne T. van der Schouw

Affiliation Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands

Diederick E. Grobbee

Affiliation Julius Centre for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands

Annemieke M. W. Spijkerman

Affiliation National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands

Daphne L. van der A

Affiliation National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands

Annemarie M. Simonis-Bik

Affiliation Diabetes Center, VU University Medical Center, Amsterdam, the Netherlands

Elisabeth M. W. Eekhoff

Affiliation Diabetes Center, VU University Medical Center, Amsterdam, the Netherlands

Michaela Diamant

Affiliation Diabetes Center, VU University Medical Center, Amsterdam, the Netherlands

Mark H. H. Kramer

Affiliation Diabetes Center, VU University Medical Center, Amsterdam, the Netherlands

Dorret I. Boomsma

Affiliations Department of Biological Psychology, VU University, Amsterdam, the Netherlands, EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands

Eco J. de Geus

Affiliations Department of Biological Psychology, VU University, Amsterdam, the Netherlands, EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands

Gonneke Willemsen

Affiliations Department of Biological Psychology, VU University, Amsterdam, the Netherlands, EMGO+ Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands

P. Eline Slagboom

Affiliations Department of Medical Statistics and Bioinformatics, section Molecular Epidemiology, Leiden University Medical Center, Leiden, the Netherlands, Netherlands Consortium for Healthy Aging, the Netherlands

Marten H. Hofker

Contributed equally to this work with: Marten H. Hofker, Leen M. 't Hart

Affiliation Molecular Genetics, Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

Leen M. 't Hart

Contributed equally to this work with: Marten H. Hofker, Leen M. 't Hart

Affiliations Diabetes Centre, Isala Clinics, Zwolle, the Netherlands, Department of Medical Statistics and Bioinformatics, section Molecular Epidemiology, Leiden University Medical Center, Leiden, the Netherlands

Competing Interests

Dr. O. H. Klungel has been consultant to Sanofi-Aventis on issues not related to this paper (2006.00.060). The UDES study was supported by an unrestricted research grant from Novo Nordisk BV (Alphen aan de Rijn, the Netherlands). This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials. The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JVV ER MHH LMTH. Performed the experiments: JVV ER LMTH. Analyzed the data: JVV ER LMTH. Contributed reagents/materials/analysis tools: TWVH GWDL ER NK HJGB OHK AD CCVD CW HMB JMD EVTR GN LMCW HZ EJB CCE FB NCO YTVDS DEG AMWS DLVDA AMS EME MD MHHK DIB EJD GW PES. Wrote the paper: JVV. Contributed to the interpretation of the data and to the writing of the manuscript: TWVH ER MHH LMTH. Provided critical comments on the manuscript: GWDL NK JMD EVTR LMCW HZ NCOM YTVDS AMWS AMS.