About the Authors

Vera L. N. Schölmerich

vera.schoelmerich@cantab.net

Affiliations Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands, VU University Amsterdam, Department of Organizational Sciences, Amsterdam, the Netherlands, Harvard School of Public Health, Department of Social and Behavioral Sciences, Boston, Massachusetts, United States of America

Özcan Erdem

Affiliations Municipality of Rotterdam, Research and Business Intelligence, Rotterdam, the Netherlands, Erasmus University Medical Center, Department of Public Health, Rotterdam, the Netherlands

Gerard Borsboom

Affiliation Erasmus University Medical Center, Department of Public Health, Rotterdam, the Netherlands

Halleh Ghorashi

Affiliation VU University Amsterdam, Department of Sociology, Amsterdam, the Netherlands

Peter Groenewegen

Affiliation VU University Amsterdam, Department of Organizational Sciences, Amsterdam, the Netherlands

Eric A. P. Steegers

Affiliation Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands

Ichiro Kawachi

Affiliation Harvard School of Public Health, Department of Social and Behavioral Sciences, Boston, Massachusetts, United States of America

Semiha Denktaş

Affiliation Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VS IK SD. Analyzed the data: VS OE GB. Wrote the paper: VS IK SD. Revised the manuscript for intellectual content: VS OE GB ES IK SD HG PG. Obtained permission to use data: VS SD ES. Interpreted results: VS OE GB IK HG PG.