Document is current

Article History

Received: 20 March 2020

Accepted: 5 July 2020

First Online: 11 July 2020

Ethics approval and consent to participate

: The Medical Ethics Committee of Amsterdam UMC, Vrije Universiteit Amsterdam, gave Ethical approval for the study (reference number 2014–197). They declared that no comprehensive ethical review was needed for this study. All procedures performed in this study were in accordance with the ethical standards of this institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: All patients have given consent to the inclusion of material pertaining to themselves and publication. They were informed that we have fully anonymised all data so that their identity cannot be identified via the paper.

: Authors K. Weerdesteijn and K. Bonefaas-Groenewoud are employees of The Dutch Social Security Institute (UWV). Author J.R. Anema is shareholder of the VUmc spin-off company Evalua Nederland B.V. () and holds a chair in Insurance Medicine on behalf of UWV. Author A.J. van der Beek is shareholder of the VUmc spin-off company Evalua Nederland B.V. (). All authors declare that they have no competing interests in the collection, analyses and interpretation of the data, nor in writing the paper or in the decision to submit the paper for publication.