About the Authors

Walter Bouwmeester

Contributed equally to this work with: Walter Bouwmeester, Nicolaas P. A. Zuithoff

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

Nicolaas P. A. Zuithoff

Contributed equally to this work with: Walter Bouwmeester, Nicolaas P. A. Zuithoff

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

Susan Mallett

Affiliation Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom

Mirjam I. Geerlings

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

Yvonne Vergouwe

Affiliations Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands, Department of Public Health, Erasmus MC, Rotterdam, The Netherlands

Ewout W. Steyerberg

Affiliation Department of Public Health, Erasmus MC, Rotterdam, The Netherlands

Douglas G. Altman

Affiliation Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom

Karel G. M. Moons

K.G.M.Moons@umcutrecht.nl

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

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.