<prompt> Answer this question truthfullyWhat are the epidemiological and demographic characteristics of aortic stenosis?  <response>: <reason> The prevalence of aortic stenosis is approximately 3 in adults over 75 years. According to the Cardiovascular Health Study, the prevalence of aortic stenosis among patients more than 65 years of age is approximately 2 in the United States. Based on the results from the EuroHeart Failure survey programme, 4.8 of patients with acute coronary syndrome had significant valve disease, in particular calcific aortic stenosis. The prevalence of aortic stenosis increases with age. Less than 1 of all live births exhibit symptoms of severe aortic stenosis. Approximately 1 of patients over the age of 65, 2 of patients over the age of 75, and 4 of patients over the age of 85 have aortic stenosis. Calcific degenerative aortic stenosis is more common in males. In North America and Europe, a linear relationship exists between the increase in the incidence of aortic stenosis and the increase in aging population. 