About the Authors

Monika Hebeisen

Roles Conceptualization, Formal analysis, Writing – review & editing

Affiliations Department of Rheumatology, Zurich University Hospital, Zurich, Switzerland, Statistics Group, Swiss Clinical Quality Management Foundation, Zurich, Switzerland

Raphael Micheroli

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Rheumatology, Zurich University Hospital, Zurich, Switzerland

Almut Scherer

Roles Formal analysis, Project administration, Validation, Writing – review & editing

Affiliation Statistics Group, Swiss Clinical Quality Management Foundation, Zurich, Switzerland

Xenofon Baraliakos

Roles Data curation, Investigation, Writing – review & editing

Affiliation Rheumazentrum Ruhrgebiet Herne, Ruhr-University Bochum, Bochum, Germany

Manouk de Hooge

Roles Data curation, Investigation, Writing – review & editing

Affiliations VIB Inflammation Research Center, Ghent University, Ghent, Belgium, Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands

Désirée van der Heijde

Roles Data curation, Methodology, Writing – review & editing

Affiliation Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands

Robert Landewé

Roles Data curation, Methodology, Writing – review & editing

Affiliations Amsterdam Rheumatology & Clinical Immunology Center, Amsterdam, The Netherlands, Zuyderland Medical Center, Heerlen, The Netherlands

Kristina Bürki

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Rheumatology, Zurich University Hospital, Zurich, Switzerland

Michael J. Nissen

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Rheumatology, University Hospital, Geneva, Switzerland

Burkhard Möller

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Rheumatology, Allergology and Clinical Immunology, Inselspital, Bern, Switzerland

Pascal Zufferey

Roles Data curation, Investigation, Writing – review & editing

Affiliation Department of Rheumatology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland

Pascale Exer

Roles Data curation, Investigation, Writing – review & editing

Affiliation Rheumatology Practice, Basel, Switzerland

Adrian Ciurea

Roles Conceptualization, Data curation, Funding acquisition, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing

adrian.ciurea@usz.ch

Affiliation Department of Rheumatology, Zurich University Hospital, Zurich, Switzerland

Competing Interests

The authors have read the journal’s policy and the authors of this manuscript have the following competing interests: A.C. has received consulting and/or speaking fees from AbbVie, Celgene, Eli Lilly, Janssen-Cilag, Merck Sharp & Dohme, Novartis, Pfizer and UCB. M.J.N. has received consulting and/or speaking fees from Abbvie, Eli Lilly, Novartis and Pfizer. D.v.d.H. has received consulting fees from Abbvie, Amgen, Astellas, AstraZeneca, Bristol-Myers Squibb, Boeringer Ingelheim, Celgene, Daiichi, Eli-Lilly, Galapagos, Gilead, Janssen, Merck, Novartis, Pfizer, Regeneron, Roche, Sanofi, UCB Pharma, and is the director of Imaging Rheumatology BV. M.H., A.S., X.B. and M.d.H. have received salaries from the Swiss Clinical Quality Management (SCQM) Foundation for specific roles in this study as detailed in the “financial disclosure” section, which were funded by the Stiftung für Rheumaforschung, Zurich, Switzerland, as well as by Merck Sharp & Dohme Corp. This does not alter our adherence to PLOS ONE policies on sharing data and materials. There are no patents, products in development or marketed products associated with this research to declare.