Przestrzenne zróżnicowanie procesu starzenia się ludności w Polsce
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The article presents the results of analysis performed on changes in the level of demographic old age coefficients in Poland during the period 1950-1982 and their differentiation in particular administrative provinces in 1962. The comparisons take in to account divisions of the Polish population in to urban and rural, and according to sex. While distinguishing groups of administrative provinces with a similar level of demographic old age coefficients, there was applied the quartile division of the variability area of these coefficients, This allowed to distinguish geographical areas characterized with a different intensity of the population aging process.