The perception of rheumatoid arthritis core set measures by rheumatologists. Results of a survey
Open Access
- 7 March 2006
- journal article
- Published by Oxford University Press (OUP) in Rheumatology
- Vol. 45 (9), 1133-1139
- https://doi.org/10.1093/rheumatology/kel074
Abstract
Objective. To investigate the perception of values of individual core set measures by rheumatologists, and how it differs across measures and across physicians. Methods. We designed a survey in which 44 international expert rheumatologists explicitly marked positions on the scales of seven core-set measures that in their opinion corresponded to cut-points between remission, low, moderate and high disease activity. The measures comprised swollen and tender joint counts (SJC, TJC), CRP, ESR, patient and evaluator global assessments of activity (PGA, EGA), and the Health Assessment Questionnaire Disability Index (HAQ). Results. The interpretation of measures across physicians was most consistent for ESR and PGA, while for CRP and joint counts there was most variation. Joint counts and CRP implied active disease at lower relative values (using normalized scales) than did PGA, EGA or ESR (PConclusion. These data give insights into the integrative process of activity evaluation and will be informative for future survey designs, studies using physician opinion as the gold standard for criterion validity of disease activity, and allow ‘activity mapping’ of values on different scales based on expert opinion.Keywords
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