Funding for this research was provided by:
Welsh Government (ETTF X.481.XTT)
Accepted: 12 November 2020
First Online: 29 November 2020
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: PROMs collection is being rolled out as part of standard care in NHS Wales and as such does not require ethical approval or patient consent. Analysis is of anonymised datasets.