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Brain and Spine Surgery in the Elderly pp 3–15Cite as

Rapid Growth in the Elderly Population of the World

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Abstract

While the rate of overall growth in the population of the world is slowing, the pace of population aging is on the rise. This chapter addresses population aging first at a conceptual level and then provides a numerical description of aging. Data are provided that show that numerical and percentage increases in the population age 65 and over varies considerably by region and nations. Projections of the older population are direct indicators of the gross market size for brain and spinal surgeries.

The author offers a sincere thanks to Jackie Lynch and Kevin Mitchell for their assistance in the preparation of this chapter.

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Notes

  1. 1.

    A more detailed description of the population age 60, 65 and 85 and over is presented in other publications (e.g., United Nations, 2015). The addition of other variables such as income, educational and immigrant status is important in many contexts.

  2. 2.

    Replacement fertility is defined as the birth rate required to replace one woman and one partner. In developed nations, that rate is approximately 2.1 children over a woman’s childbearing years (total fertility rate, TFR). The developed world has a TFR below 2.0, with a number of nations at or below 1.7.

  3. 3.

    Life expectancy at any age is the total number of years on average that a cohort of persons can expect to live given the assumption that current death rates remain constant.

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Author information

Authors and Affiliations

  1. College of Business Administration, University of Nebraska Omaha, Omaha, NE, USA

    Louis G. Pol

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  1. Louis G. Pol
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Correspondence to Louis G. Pol .

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Editors and Affiliations

  1. Department of Neurosurgery, University Hospital of Lyon, Lyon, France

    Moncef Berhouma

  2. Hôpital des Charpennes, Hospices civils de Lyon, Villeurbanne, France

    Pierre Krolak-Salmon

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Pol, L.G. (2017). Rapid Growth in the Elderly Population of the World. In: Berhouma, M., Krolak-Salmon, P. (eds) Brain and Spine Surgery in the Elderly. Springer, Cham. https://doi.org/10.1007/978-3-319-40232-1_1

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  • DOI: https://doi.org/10.1007/978-3-319-40232-1_1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-40231-4

  • Online ISBN: 978-3-319-40232-1

  • eBook Packages: MedicineMedicine (R0)

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