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Characteristics and risk factors of COVID-19 breakthrough infections in Idiopathic Inflammatory Myopathies: Results from the COVAD study
School of Medicine, Universidade Potiguar (UnP), Natal, Brazil.
Örebro University, School of Medical Sciences. Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden; Department of Rheumatology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.ORCID iD: 0000-0002-4875-5395
Department of Rheumatology, Royal Wolverhampton Hospitals NHS Trust, Wolverhampton, UK; Division of Musculoskeletal and Dermatological Sciences, Centre for Musculoskeletal Research, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK; City Hospital, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, United Kingdom.
Number of Authors: 532024 (English)In: Rheumatology, ISSN 1462-0324, E-ISSN 1462-0332, article id keae128Article in journal (Refereed) Epub ahead of print
Abstract [en]

OBJECTIVES: To explore prevalence, characteristics and risk factors of COVID-19 breakthrough infections (BIs) in idiopathic inflammatory myopathies (IIM) using data from the COVID-19 Vaccination in Autoimmune Diseases (COVAD) study.

METHODS: A validated patient self-reporting e-survey was circulated by the COVAD study group to collect data on COVID-19 infection and vaccination in 2022. BIs were defined as COVID-19 occurring ≥14 days after 2 vaccine doses. We compared BIs characteristics and severity among IIMs, other autoimmune rheumatic and non-rheumatic diseases (AIRD, nrAID), and healthy controls (HC). Multivariable Cox regression models assessed the risk factors for BI, severe BI and hospitalisations among IIMs.

RESULTS: Among 9449 included response, BIs occurred in 1447 (15.3%) respondents, median age 44 years (IQR 21), 77.4% female, and 182 BIs (12.9%) occurred among 1406 IIMs. Multivariable Cox regression among IIMs showed age as a protective factor for BIs [Hazard Ratio (HR)=0.98, 95%CI = 0.97-0.99], hydroxychloroquine and sulfasalazine use were risk factors (HR = 1.81, 95%CI = 1.24-2.64, and HR = 3.79, 95%CI = 1.69-8.42, respectively). Glucocorticoid use was a risk factor for severe BI (HR = 3.61, 95%CI = 1.09-11.8). Non-White ethnicity (HR = 2.61, 95%CI = 1.03-6.59) was a risk factor for hospitalisation. Compared with other groups, patients with IIMs required more supplemental oxygen therapy (IIM = 6.0% vs AIRD = 1.8%, nrAID = 2.2%, and HC = 0.9%), intensive care unit admission (IIM = 2.2% vs AIRD = 0.6%, nrAID, and HC = 0%), advanced treatment with antiviral or monoclonal antibodies (IIM = 34.1% vs AIRD = 25.8%, nrAID = 14.6%, and HC = 12.8%), and had more hospitalisation (IIM = 7.7% vs AIRD = 4.6%, nrAID = 1.1%, and HC = 1.5%).

CONCLUSION: Patients with IIMs are susceptible to severe COVID-19 BI. Age and immunosuppressive treatments were related to the risk of BIs.

Place, publisher, year, edition, pages
Oxford University Press, 2024. article id keae128
Keywords [en]
COVID-19, autoimmune diseases, breakthrough infection, hospitalisation, idiopathic inflammatory myopathies
National Category
Rheumatology and Autoimmunity
Identifiers
URN: urn:nbn:se:oru:diva-112081DOI: 10.1093/rheumatology/keae128ISI: 001179119600001PubMedID: 38430474OAI: oai:DiVA.org:oru-112081DiVA, id: diva2:1842270
Available from: 2024-03-04 Created: 2024-03-04 Last updated: 2024-03-25Bibliographically approved

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