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The incidence of giant cell arteritis in Olmsted County, Minnesota, over a 60-year period 1950-2009.
Scand J Rheumatol
; 44(3): 215-8, 2015 May.
Article
in English
| MEDLINE
| ID: mdl-25606666
ABSTRACT
OBJECTIVE: To assess the incidence of giant cell arteritis (GCA) in the era from 2000 to 2009. METHOD: 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.