RT Journal Article SR Electronic T1 Outcome Measures in Polymyalgia Rheumatica. A Systematic Review JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.150515 DO 10.3899/jrheum.150515 A1 Cátia Duarte A1 Ricardo Jorge de Oliveira Ferreira A1 Sarah Louise Mackie A1 John Richard Kirwan A1 José António Pereira da Silva YR 2015 UL http://www.jrheum.org/content/early/2015/11/09/jrheum.150515.abstract AB Objective To identify the instruments used to assess polymyalgia rheumatica (PMR) in published studies. Methods A systematic literature review of clinical trials and longitudinal observational studies related to PMR, published from 1970 to 2014, was carried out. All outcome and assessment instruments were extracted and categorized according to core areas and domains, as defined by the OMERACT (Outcome Measures in Rheumatology) Filter 2.0. Results Thirty-five articles (3221 patients) were included: 12 randomized controlled trials (RCT); 3 nonrandomized trials; and 20 observational studies. More than 20 domains were identified, measured by 29 different instruments. The most frequently used measures were pain, morning stiffness, patient global assessment and physician global assessment, erythrocyte sedimentation rate, and C-reactive protein. The definition of outcomes varied considerably between studies. Conclusion The outcome measures and instruments used in PMR are numerous and diversely defined. The establishment of a core set of validated and standardized outcome measurements is needed.