Understanding the measurement relationship between EQ-5D-5L, PROMIS-29 and PROPr.

"Declarations Conflict of interestFinancial interests: The authors declare they have no financial interests. Non-financial interests: BM, RN, RV and ND are members of the EuroQol Group, the copyright holders of the EQ-5D-5L. JH contributed to the development of the PROPr. Ethical approvalEthics approval was granted by the Centre for Health Economics Research and Evaluation, University of Technology Sydney, programme research ethics process [UTS HREC REF NO. 2015000135]. Consent to participateInformed consent was obtained from all individual participants included in the study. Conflict of interest Financial interests: The authors declare they have no financial interests. Non-financial interests: BM, RN, RV and ND are members of the EuroQol Group, the copyright holders of the EQ-5D-5L. JH contributed to the development of the PROPr."

"Funding Open Access funding enabled and organized by CAUL and its Member Institutions. Financial support for this study was provided entirely by a grant from the EuroQol Research Foundation. The funding agreement ensured the authors’ independence in designing the study, interpreting the data, writing, and publishing the report."