Temporal arteritis epidemiology and demographics
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Epidemiology and Demographics
Age
The mean age of onset is about 70 years and is rare at less than 50 years of age.
Because temporal arteritis is a disease of the elderly, the prevalence of the disease is very dependent upon the age of the population. As a result, there is a lower prevalence in countries with a shorter or reduced life expectancy.
Gender
It is more common in females than males by a ratio of 3.7:1.
Race
It is more prevalent in caucasians.
Prevalence
Most likely as a result of increased clinical recognition of the syndrome, the incidence of temporal arteritis increased between 1950 and 1975 from 5.1 to 17.4 incident cases per 100,000 population per year in persons aged 50 years and older in Olmsted County, Minnesota. More recently in this population, the prevalence was even higher at 133 cases per 100,000 in persons aged 50 years and older.
There is not much data regarding the prevalence of disease outside the US, but given the variation in life expectancy and demographics, the prevalence is thought to vary significantly. The highest reported rates of disease outside the US are in Scandinavia, where the prevalence is 23.3-33.6 per 100,000 people older than 50 years.