SAT0287 Ethnic Differences Strongly Influence The Phenotypic Expression of Primary Sjögren: Study of 7887 Patients from 20 Countries on 5 Continents (EULAR-SS Task Force Big Data Sjögren Project)

Objectives To analyse the influence of ethnicity on the clinical presentation at diagnosis in an international cohort of patients with primary Sjogren syndrome (pSS). Methods The Big Data Sjogren Project is a multicentre registry formed by international experts from the EULAR-SS Task Force. By January 2016, the database included 8315 consecutive patients fulfilling the 2002 AE criteria (20 countries, 5 continents). Ethnicity was classified according to FDA (White=W, Black/African American=B, Asian=A, Hispanic=H, Others=O). Results Ethnicity data was available in 7887 (95%) patients: 6177 W (78%), 1066 A (13%), 393 H (5%), 104 B (1%) and 147 O (2%). European patients were overwhelmingly white compared with Americans (96% vs 52%, p Conclusions White patients had the oldest age at diagnosis, Black/African Americans the highest frequency of men and the lowest mean age, Asians the highest frequency of women, the lowest frequency of sicca symptoms and the highest frequency of Ro/La and Hispanics the highest frequency of abnormal diagnostic tests. Ethnicity plays a capital role in the phenotypic expression at diagnosis of primary SS. Disclosure of Interest None declared