About the Authors

Irene G. M. van Valkengoed

i.g.vanvalkengoed@amc.nl

Affiliation Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands

Everlina M. A. Vlaar

Current address: Public Health Service, Almere, The Netherlands

Affiliation Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands

Vera Nierkens

Current address: Department of Public Health, Leiden University Medical Centre, Leiden, The Netherlands

Affiliation Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands

Barend J. C. Middelkoop

Affiliations Department of Public Health, Leiden University Medical Centre, Leiden, The Netherlands, Public Health Service, The Hague, The Netherlands

Karien Stronks

Affiliation Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: IGMvV KS. Performed the experiments: IGMvV EMAV VN. Analyzed the data: IGMvV. Contributed reagents/materials/analysis tools: BJCM. Wrote the paper: IGMvV EMAV VN BJCM KS.