Outcomes Measured in Polymyalgia Rheumatica and Measurement Properties of Instruments Considered for the OMERACT Core Outcome Set: A Systematic Review.

Measurement of outcomes in studies of PMR lacks consistency. The critical patient-centered domain of physical function is poorly assessed. None of the candidate instruments considered for inclusion in the core outcome set had high-quality evidence, derived from populations with PMR, on their full range of measurement properties. Further studies are needed to determine whether these instruments are suitable for inclusion in a core outcome measurement set for PMR.