Why is Addisons considered a rare disorder?
There are no accurate statistics on the incidence of Addison’s disease in the United States. A study in London showed thirty-nine cases per million population as of 1960. Twelve were due to tuberculosis. In the non-tuberculosis group, women were three times more likely to have Addison’s disease. Extrapolation of these figures to the U.S. would give about 8,800 cases, but this is probably an underestimation.
