Funding for this research was provided by:
Nuffield Foundation (FJO/43766)
Received: 12 June 2020
Accepted: 28 October 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: The project proposal was reviewed by the SAIL Information Governance Review Panel (IGRP) at Swansea University. This panel ensures that work complies with information governance principles and represents an appropriate use of data in the public interest. The IGRP includes representatives of professional and regulatory bodies, data providers and the general public. Approval for the project was granted by the IGRP under SAIL project 0929. Cafcass Cymru (the data owner of the family courts data) also approved use of the data for this project.
: Not applicable.
: All authors declare no conflict of interests.