title: A model for analyzing the aging of local populations: Illinois counties between 1950 and 1970.
abstract: The article develops a model which explains the aging of local populations, expressed in terms of percent of the population over sixty-five years, in terms of the net movement of the young and the elderly, as well as socio-economic characteristics of the local population. The model is illustrated for data from Illinois counties for the period 1950-1960 and 1960-1970. The model represents the data for the 1960's more accurately than the data for the 1950's.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D006801:Humans; D007087:Illinois; D008019:Life Style; D008875:Middle Aged; D008962:Models, Theoretical; D011157:Population Dynamics; D011158:Population Growth; D012959:Socioeconomic Factors