title: The incidence of giant cell arteritis in Olmsted County, Minnesota, over a 60-year period 1950-2009.
abstract: OBJECTIVE
  To assess the incidence of giant cell arteritis (GCA) in the era from 2000 to 2009.
  
  
  METHODS
  We extended the previously identified population-based cohort of Olmsted County, Minnesota residents who fulfilled 1990 American College of Rheumatology (ACR) criteria for GCA for earlier decades during 1950-1999.
  
  
  RESULTS
  In 2000-2009, 74 cases of GCA were identified (mean age 78.1 years; 80% women; 79% temporal artery biopsy positive; seven included based on radiological criteria). The incidence of GCA was 19.8 per 100,000 population.
  
  
  CONCLUSIONS
  The GCA incidence rates have remained steady since 1970 and the age at incidence, which was progressively increasing, seems to have reached a plateau.
authors.affiliation: Division of Rheumatology, Mayo Clinic College of Medicine , Rochester, MN , USA.
authors.forename: A K
authors.initials: AK
authors.lastname: Chandran
authors.forename: P D
authors.initials: PD
authors.lastname: Udayakumar
authors.forename: C S
authors.initials: CS
authors.lastname: Crowson
authors.forename: K J
authors.initials: KJ
authors.lastname: Warrington
authors.forename: E L
authors.initials: EL
authors.lastname: Matteson
mesh_terms: D017677:Age Distribution; D017668:Age of Onset; D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D005260:Female; D013700:Giant Cell Arteritis / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D008910:Minnesota / Q000453:epidemiology; D017678:Sex Distribution