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New 2019 SLE EULAR/ACR classification criteria are valuable for distinguishing patients with SLE from patients with pSS
  1. Florence Assan1,
  2. Raphaele Seror1,2,
  3. Xavier Mariette1,2,
  4. Gaetane Nocturne1,2
  1. 1Rheumatology, AP-HP, Hôpitaux Universitaires Paris-Sud, Le Kremlin-Bicêtre, France
  2. 2Université Paris-Sud, Center for Immunology of Viral Infections and Auto-immune Diseases (IMVA), Institut pour la Santé et la Recherche Médicale (INSERM) UMR 1184, Université Paris-Saclay, Le Kremlin-Bicêtre, France
  1. Correspondence to Professor Xavier Mariette, Rheumatology, Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpitaux universitaires Paris-Sud – Hôpital Bicêtre, Le Kremlin Bicêtre 94270, France; xavier.mariette{at}

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The new 2019 SLE European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) classification criteria for systemic lupus erythematosus (SLE) have been recently published.1 These criteria have been developed to find a better equilibrium between specificity and sensitivity compared with the previous criteria (SLE ACR-19972 and SLE Systemic Lupus International Collaborating Clinics (SLICC)3). Even if these criteria have been built for classification, they could be useful in clinical practice in patients with a suspicion of systemic autoimmune disease (AID) to differentiate patients with SLE from patients with another systemic AID, such as primary Sjögren’s syndrome (pSS), scleroderma or myositis. SLE and pSS share biological and clinical similarities. In clinical practice, it is frequently difficult to differentiate these two diseases. Moreover, SLE and Sjögren’s syndrome (SS) may overlap. The aim of this study was to explore the utility of the 2019 SLE EULAR/ACR criteria compared with the …

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