Levels of anti-citrullinated protein antibodies and IgM rheumatoid factor are not associated with outcome in early arthritis patients: a cohort study |
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Authors: | Jennie Ursum Wouter H Bos Nancy van Dillen Ben AC Dijkmans Dirkjan van Schaardenburg |
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Affiliation: | (1) department of rheumatology, Jan van Breemen Institute, Dr. Jan van Breemenstraat 2, 1056, AB, Amsterdam, The Netherlands;(2) department of rheumatology, VU University Medical Centre, Postbus 7057, 1007, MB, Amsterdam, The Netherlands |
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Abstract: | Introduction To investigate whether baseline levels of anti-citrullinated protein antibody (ACPA) or IgM rheumatoid factor (IgM-RF) and changes in the year thereafter are associated with disease activity, functional and radiographic outcome in early arthritis patients, and provide additional information over baseline autoantibody status. |
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