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Another important demographic index relates to the proportion of elderly persons > 80 yr of age, who are categorized as the old-old. The proportion of those > 80 depends in part on the fertility patterns of 60 yr ago. In 1990, 14% of the elderly population worldwide (19% in devel¬oped and 11% in developing regions) were > 80 (see TABLE 106-1). Fur¬thermore, the worldwide percentage will rise rapidly over the next 15 yr. Brazil’s old-old population will grow fastest, followed by that of China, Japan, and Bulgaria (see TABLE 106-2). However, by the end of this century, the USA will have the largest proportion of old-old popu¬lation, with 31% of its elderly being > 80 yr old.    <
The old-old require disproportionately more health and social ser¬vices. Given the costs of properly caring for all older persons, the chal¬lenge to already overburdened societies will be immense. In some Afri¬can countries, where the AIDS epidemic is ravaging the population of young adults, some authorities believe that within a decade, the very young and the elderly will make up the largest part of the population.

Tags: POPULATION

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