About the Authors

Walter Bouwmeester, Nicolaas P. A. Zuithoff, Mirjam I. Geerlings, Yvonne Vergouwe, Karel G. M. Moons
Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands

Susan Mallett
Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom

Yvonne Vergouwe, Ewout W. Steyerberg
Department of Public Health, Erasmus MC, Rotterdam, The Netherlands

Douglas G. Altman
Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom

Corresponding Author

K.G.M.Moons@umcutrecht.nl

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: WB NPAZ SM KGMM. Wrote the first draft of the manuscript: WB NPAZ. Contributed to the writing of the manuscript: WB NPAZ SM MIG YV EWS DGA KGMM. ICMJE criteria for authorship read and met: WB NPAZ SM MIG YV EWS DGA KGMM. Agree with manuscript results and conclusions: WB NPAZ SM MIG YV EWS DGA KGMM.