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The aging index (AI) assesses the process of the broadening of the elderly portion of the total population in relation to the relative variation in the young age group, where it is determined by the ratio of the elderly population to the young population. This indicator allows the observation of the evolution of the aging rhythm of the population, comparing geographic areas and social groups, and can thus help in the formulation, management and evaluation of public policies in the areas of health and social welfare. Palavras-chave: Envelhecimento da populacao. Envelhecimento Demografico. Indices. Censo Demografico. Transicao demografica. Brasil.

A evolução do índice de envelhecimento no Brasil, nas suas regiões e unidades federativas no período de 1970 a 2010