Received: 26 April 2017
Accepted: 11 January 2018
First Online: 18 January 2018
Ethics approval and consent to participate
: We received permission from the SSI to use their registration data for this study.
: Not applicable.
: IL and HJvR are employed at the Dutch Social Security Institute. AJvdB and JRA are shareholder of VU University Medical Center spin-off company Evalua Nederland BV. JRA holds a chair in Insurance Medicine on behalf of the Dutch Institute for Employee Benefit Schemes.
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