Population will be larger, older, more diverse.
D000368:Aged; D005006:Ethnicity / Q000706:statistics & numerical data; D006301:Health Services Needs and Demand / Q000639:trends*; D006801:Humans; D008017:Life Expectancy; D006278:Medicare / Q000639:trends; D011157:Population Dynamics; D014481:United States / Q000453:epidemiology