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  • Title: Prevalence and clinical significance of extra-articular manifestations at diagnosis in the ESPOIR cohort with recent-onset arthritis.
    Author: Guellec D, Cozien S, Ruyssen-Witrand A, Dieudé P, Saraux A.
    Journal: Semin Arthritis Rheum; 2020 Jun; 50(3):409-413. PubMed ID: 32067722.
    Abstract:
    OBJECTIVES: The aim of this study was to determine the prevalence and clinical significance of extra-articular manifestations (EAMs) at inclusion into a cohort of patients with recent-onset arthritis consistent with rheumatoid arthritis (RA). METHODS: The ESPOIR cohort included patients aged 18 to 70 years who had a definitive or probable diagnosis of RA. Symptoms consistent with EAMs were collected at baseline. We divided the patients into two groups, with vs. without baseline EAMs. We looked for associations linking the presence of EAMs at baseline to patient and disease characteristics at baseline and 5 years later, as well as to diagnostic certainty after 2 years. The analyses were adjusted for multiple comparisons using the Benjamini-Hochberg procedure to control the false discovery rate. RESULTS: Of 798 patients, 330 (41.4%) had at least one symptom consistent with EAM at baseline, with the most common being sicca syndrome (28.4%) and Raynaud's phenomenon (17.3%). The EAM+ group had a higher mean baseline DAS-28 value (5.3 ± 1.3 versus 5.0 ± 1.3; corrected p value = 0.005) compared to the EAM- group. The final diagnosis did not differ between the two groups. After 5 years, the EAM+ group had significantly higher values for the tender joint count (3.9 ± 6.4 versus 1.8 ± 3.3, corrected p value = 0.005) and swollen joint count (1.3 ± 2.8 versus 1.1 ± 2.3, corrected p value =0.0005) compared to the EAM- group. CONCLUSION: EAMs, particularly sicca syndrome and Raynaud's phenomenon, are very common in patients with early arthritis consistent with RA. In this population, several parameters reflecting disease activity were higher among patients with EAMs, at baseline and after 5 years.
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