RT Journal Article SR Electronic T1 Updating the OMERACT Filter: Implications for Patient-reported Outcomes JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.131312 DO 10.3899/jrheum.131312 A1 John R. Kirwan A1 Susan J. Bartlett A1 Dorcas E. Beaton A1 Maarten Boers A1 Ailsa Bosworth A1 Peter M. Brooks A1 Ernest Choy A1 Maarten de Wit A1 Francis Guillemin A1 Sarah Hewlett A1 Tore K. Kvien A1 Robert B. Landewé A1 Amye L. Leong A1 Anne Lyddiatt A1 Lyn March A1 James May A1 Pamela Lesley Montie A1 Enkeleida Nikaï A1 Pam Richards A1 Marieke M.J.H. Voshaar A1 Wilma Smeets A1 Vibeke Strand A1 Peter Tugwell A1 Laure Gossec YR 2014 UL http://www.jrheum.org/content/early/2014/02/26/jrheum.131312.abstract AB Objective At a previous Outcome Measures in Rheumatology (OMERACT) meeting, participants reflected on the underlying methods of patient-reported outcome (PRO) instrument development. The participants requested proposals for more explicit instrument development protocols that would contribute to an enhanced version of the “Truth” statement in the OMERACT Filter, a widely used guide for outcome validation. In the present OMERACT session, we explored to what extent these new Filter 2.0 proposals were practicable, feasible, and already being applied. Methods Following overview presentations, discussion groups critically reviewed the extent to which case studies of current OMERACT Working Groups complied with or negated the proposed PRO development framework, whether these observations had a more general application, and what issues remained to be resolved. Results Several aspects of PRO development were recognized as particularly important, and the need to directly involve patients at every stage of an iterative PRO development program was endorsed. This included recognition that patients contribute as partners in the research and not merely as subjects. Correct communication of concepts with the words used in questionnaires was central to their performance as measuring instruments, and ensuring this understanding crossed cultural and linguistic boundaries was important in international studies or comparisons. Conclusion Participants recognized, endorsed, and were generally already putting into practice the principles of PRO development presented in the plenary session. Further work is needed on some existing instruments and on establishing widespread good practice for working in close collaboration with patients.