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Validation of giant cell arteritis diagnosis code in the French hospital electronic database

Published:November 14, 2018DOI:https://doi.org/10.1016/j.ejim.2018.10.004
      Giant cell arteritis (GCA) is a rare form of large-vessel vasculitis which predominantly affects women over 50 years of age [
      • Salvarani C.
      • Cantini F.
      • Hunder G.G.
      Polymyalgia rheumatica and giant-cell arteritis.
      ]. GCA usually involves granulomatous inflammation of the aorta and its major branches, with a predilection for extracranial branches of the carotid artery. The annual incidence rate per 100,000 inhabitants aged ≥50 years is between 5.8 and 20 in European countries [
      • Petri H.
      • Nevitt A.
      • Sarsour K.
      • Napalkov P.
      • Collinson N.
      Incidence of giant cell arteritis and characteristics of patients: Data-driven analysis of comorbidities.
      ].
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