Demography, Epidemiology, and Aging

  • Christine K. Cassel
  • Jacob A. Brody


Demography is the study of populations—viewed re­gionally, nationally, or globally—describing the numbers of people and the dynamics of population change. Demographic studies reveal the phenomenon of increasing numbers and increasing proportion of older people in the United States and in other developed countries. This phenomenon is so predictable that it has become a measure of improved economic and health status of nations in the 20th Century. Aging populations are the result of three major factors: fertility, mortality, and immigration. This discussion concerns the United States, where in the last half century immigration has not been a major influence on mortality patterns, and thus will not discuss immigration in any detail.


Life Expectancy Heart Attack Hearing Impairment Epidemiologic Transition Chronic Degenerative Disease 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Christine K. Cassel
  • Jacob A. Brody

There are no affiliations available

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