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Epidemiological profile and north-south gradient driving baseline systemic involvement of primary Sjögren's syndrome

  • Pilar Brito-Zerón
  • , Nihan Acar-Denizli
  • , Wan Fai Ng
  • , Ildiko Fanny Horváth
  • , Astrid Rasmussen
  • , Raphaele Seror
  • , Xiaomei Li
  • , Chiara Baldini
  • , Jacques Eric Gottenberg
  • , Debashish Danda
  • , Luca Quartuccio
  • , Roberta Priori
  • , Gabriela Hernandez-Molina
  • , Berkan Armagan
  • , Aike A. Kruize
  • , Seung Ki Kwok
  • , Marika Kvarnstrom
  • , Sonja Praprotnik
  • , Damien Sene
  • , Roberto Gerli
  • Roser Solans, Maureen Rischmueller, Thomas Mandl, Yasunori Suzuki, David Isenberg, Valeria Valim, Piotr Wiland, Gunnel Nordmark, Guadalupe Fraile, Hendrika Bootsma, Hideki Nakamura, Roberto Giacomelli, Valerie Devauchelle-Pensec, Benedikt Hofauer, Michele Bombardieri, Virginia Fernandes Moça Trevisani, Daniel Hammenfors, Sandra G. Pasoto, Soledad Retamozo, Tamer A. Gheita, Fabiola Atzeni, Jacques Morel, Cristina Vollenweider, Margit Zeher, Kathy Sivils, Bei Xu, Stefano Bombardieri, Pulukool Sandhya, Salvatore De Vita, Antonina Minniti, Jorge Sánchez-Guerrero, Levent Kilic, Eefje Van Der Heijden, Sung Hwan Park, Marie Wahren-Herlenius, Xavier Mariette, Manuel Ramos-Casals
  • Hospital CIMA Sanitas
  • University of Barcelona
  • Mimar Sinan Guzel Sanatlar University
  • Newcastle University
  • University of Debrecen
  • Oklahoma Medical Research Foundation
  • Institut national de la santé et de la recherche médicale
  • Anhui Provincial Hospital
  • University of Pisa
  • Strasbourg University Hospital
  • Christian Medical College
  • S. Maria Della Misericordia Hospital
  • University of Rome La Sapienza
  • Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
  • Hacettepe University
  • Utrecht University
  • The Catholic University of Korea
  • Karolinska Institutet
  • University Medical Centre
  • Université Paris Cité
  • University of Perugia
  • Hospital Universitari Vall d'Hebron
  • University of Adelaide
  • Lund University
  • Kanazawa University
  • University College London
  • Universidade Federal do Espírito Santo
  • Wroclaw Medical Hospital
  • Uppsala University
  • Hospital Ramon y Cajal
  • University of Groningen
  • Nagasaki University
  • University of L'Aquila
  • CHU de Brest
  • University of Freiburg
  • Queen Mary University of London
  • Universidade Federal de São Paulo
  • University of Bergen
  • Universidade de São Paulo
  • Universidad Nacional de Córdoba
  • Instituto Universitario de Ciencias Biomédicas de Córdoba
  • Cairo University
  • IRCCS Galeazzi Orthopedic Institute
  • University of Messina
  • Université de Montpellier
  • Hospital Alemán

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: To characterize the systemic phenotype of primary Sjögren's syndrome at diagnosis by analysing the EULAR-SS disease activity index (ESSDAI) scores. Methods: The Sjögren Big Data Consortium is an international, multicentre registry based on worldwide data-sharing cooperative merging of pre-existing databases from leading centres in clinical research in Sjögren's syndrome from the five continents. Results: The cohort included 10 007 patients (9352 female, mean 53 years) with recorded ESSDAI scores available. At diagnosis, the mean total ESSDAI score was 6.1; 81.8% of patients had systemic activity (ESSDAI score ≥1). Males had a higher mean ESSDAI (8.1 vs 6.0, P < 0.001) compared with females, as did patients diagnosed at <35 years (6.7 vs 5.6 in patients diagnosed at >65 years, P < 0.001). The highest global ESSDAI score was reported in Black/African Americans, followed by White, Asian and Hispanic patients (6.7, 6.5, 5.4 and 4.8, respectively; P < 0.001). The frequency of involvement of each systemic organ also differed between ethnic groups, with Black/African American patients showing the highest frequencies in the lymphadenopathy, articular, peripheral nervous system, CNS and biological domains, White patients in the glandular, cutaneous and muscular domains, Asian patients in the pulmonary, renal and haematological domains and Hispanic patients in the constitutional domain. Systemic activity measured by the ESSDAI, clinical ESSDAI (clinESSDAI) and disease activity states was higher in patients from southern countries (P < 0.001). Conclusion: The systemic phenotype of primary Sjögren's syndrome is strongly influenced by personal determinants such as age, gender, ethnicity and place of residence, which are key geoepidemiological players in driving the expression of systemic disease at diagnosis.

Original languageEnglish
Pages (from-to)2350-2359
Number of pages10
JournalRheumatology
Volume59
Issue number9
DOIs
Publication statusPublished - 1 Sep 2020
Externally publishedYes

Keywords

  • ethnicity
  • gender
  • geoepidemiology
  • phenotype
  • primary Sjögren's syndrome

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