World Population Ageing 2015

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Accurate, consistent and timely data on global trends in population age structure are critical for assessing current and future needs with respect to population ageing and for setting policy priorities to promote the well-being of the growing number and share of older persons in the population. This publication summarizes the trends in population ageing drawn from the latest United Nations estimates and projections of population by age and sex of 233 countries or areas, as published in World Population Prospects: the 2015 Revision. The report focuses in particular on the period from 2015 to 2030, the implementation period identified for the 2030 Agenda for Sustainable Development, and discusses some implications of trends in the number and share of older persons for development planning, including with respect to poverty eradication and economic growth, social protection, and the health and well-being of older persons.




In the area of population ageing, the Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat prepares national, regional and global estimates and projections of older populations, monitors levels and trends in population ageing and collects and analyses information on the relationship between population ageing and development. The Population Division also organizes expert group meetings on various aspects of population ageing.


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