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Publication Detail
Accrual of Atherosclerotic Vascular Events in a Multicenter Inception Systemic Lupus Erythematosus Cohort
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Urowitz MB, Gladman DD, Farewell V, Su J, Romero-Diaz J, Bae SC, Fortin PR, Sanchez-Guerrero J, Clarke AE, Bernatsky S, Gordon C, Hanly JG, Wallace DJ, Isenberg DA, Rahman A, Merrill JT, Ginzler E, Alarcón GS, Chatham WW, Petri MA, Bruce IN, Khamashta MA, Aranow C, Dooley MA, Manzi S, Ramsey-Goldman R, Nived O, Jönsen A, Steinsson K, Zoma AA, Ruiz-Irastorza G, Lim SS, Kalunian KC, Ỉnanç M, van Vollenhoven R, Ramos-Casals M, Kamen DL, Jacobsen S, Peschken CA, Askanase A, Stoll T
  • Publication date:
    01/10/2020
  • Journal:
    Arthritis and Rheumatology
  • Status:
    Published
  • Print ISSN:
    2326-5191
Abstract
© 2020, American College of Rheumatology Objective: In previous studies, atherosclerotic vascular events (AVEs) were shown to occur in ~10% of patients with systemic lupus erythematosus (SLE). We undertook this study to investigate the annual occurrence and potential risk factors for AVEs in a multinational, multiethnic inception cohort of patients with SLE. Methods: A large 33-center cohort of SLE patients was followed up yearly between 1999 and 2017. AVEs were attributed to atherosclerosis based on SLE being inactive at the time of the AVE as well as typical atherosclerotic changes observed on imaging or pathology reports and/or evidence of atherosclerosis elsewhere. Analyses included descriptive statistics, rate of AVEs per 1,000 patient-years, and univariable and multivariable relative risk regression models. Results: Of the 1,848 patients enrolled in the cohort, 1,710 had ≥1 follow-up visit after enrollment, for a total of 13,666 patient-years. Of these 1,710 patients, 3.6% had ≥1 AVEs attributed to atherosclerosis, for an event rate of 4.6 per 1,000 patient-years. In multivariable analyses, lower AVE rates were associated with antimalarial treatment (hazard ratio [HR] 0.54 [95% confidence interval (95% CI) 0.32–0.91]), while higher AVE rates were associated with any prior vascular event (HR 4.00 [95% CI 1.55–10.30]) and a body mass index of >40 kg/m2 (HR 2.74 [95% CI 1.04–7.18]). A prior AVE increased the risk of subsequent AVEs (HR 5.42 [95% CI 3.17–9.27], P < 0.001). Conclusion: The prevalence of AVEs and the rate of AVE accrual demonstrated in the present study is much lower than that seen in previously published data. This may be related to better control of both the disease activity and classic risk factors.
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