Ankylosing spondylitis disease activity score is related to NSAID use, especially in patients treated with TNF-α inhibitors

• Marlies J. G. Carbo ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: m.j.g.carbo@umcg.nl

  Affiliation Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

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• Anneke Spoorenberg,

  Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Visualization, Writing – original draft, Writing – review & editing

  Affiliations Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands, Rheumatology, Medical Center Leeuwarden, Leeuwarden, the Netherlands

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• Fiona Maas,

  Roles Conceptualization, Data curation, Formal analysis, Methodology, Project administration, Resources, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

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• Elisabeth Brouwer,

  Roles Conceptualization, Methodology, Supervision, Visualization, Writing – review & editing

  Affiliation Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

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• Reinhard Bos,

  Roles Conceptualization, Methodology, Visualization, Writing – review & editing

  Affiliation Rheumatology, Medical Center Leeuwarden, Leeuwarden, the Netherlands

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• Hendrika Bootsma,

  Roles Conceptualization, Investigation, Methodology, Visualization, Writing – review & editing

  Affiliation Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

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• Eveline van der Veer,

  Roles Conceptualization, Data curation, Visualization, Writing – review & editing

  Affiliation Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands

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• Freke Wink,

  Roles Conceptualization, Data curation, Methodology, Writing – review & editing

  Affiliation Rheumatology, Medical Center Leeuwarden, Leeuwarden, the Netherlands

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• Suzanne Arends

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliations Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands, Rheumatology, Medical Center Leeuwarden, Leeuwarden, the Netherlands

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