RT Journal Article SR Electronic T1 Cryoglobulinemia in Sjögren Syndrome: A Disease Subset that Links Higher Systemic Disease Activity, Autoimmunity, and Local B Cell Proliferation in Mucosa-associated Lymphoid Tissue JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1179 OP 1183 DO 10.3899/jrheum.161465 VO 44 IS 8 A1 Luca Quartuccio A1 Chiara Baldini A1 Roberta Priori A1 Elena Bartoloni A1 Francesco Carubbi A1 Alessia Alunno A1 Saviana Gandolfo A1 Serena Colafrancesco A1 Roberto Giacomelli A1 Roberto Gerli A1 Guido Valesini A1 Stefano Bombardieri A1 Salvatore De Vita YR 2017 UL http://www.jrheum.org/content/44/8/1179.abstract AB Objective. To compare systemic disease activity by validated tools, i.e., the European League Against Rheumatism Sjögren Syndrome Disease Activity Index (ESSDAI) and the Clinical ESSDAI (ClinESSDAI) scores, between primary Sjögren syndrome (pSS) with positive serum cryoglobulins and pSS without serum cryoglobulins.Methods. There were 825 consecutive patients with pSS who were retrospectively evaluated.Results. The ESSDAI and the ClinESSDAI scores were significantly higher in cryoglobulin-positive patients (p < 0.0001, for both scores). Cryoglobulinemia was significantly associated with these domains: constitutional (p = 0.003), lymphadenopathy (p = 0.007), glandular (p = 0.0002), cutaneous (p < 0.0001), peripheral nervous system (p < 0.0001), hematological (p = 0.004), and biological (p < 0.0001).Conclusion. Cryoglobulin-positive patients show the highest systemic activity in pSS.