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Life span inequality as a function of the moments of the deaths distribution: Connections and insights

Recent work has unearthed many empirical regularities in mortality trends, including the inverse correlation between life expectancy and life span inequality, and the compression of mortality into older age ranges. These regularities have furnished important insights into the dynamics of mortality b...

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Detalles Bibliográficos
Autores principales: Fernandez, Oscar E., Beltrán-Sánchez, Hiram
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8803175/
https://www.ncbi.nlm.nih.gov/pubmed/35100280
http://dx.doi.org/10.1371/journal.pone.0262869
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author Fernandez, Oscar E.
Beltrán-Sánchez, Hiram
author_facet Fernandez, Oscar E.
Beltrán-Sánchez, Hiram
author_sort Fernandez, Oscar E.
collection PubMed
description Recent work has unearthed many empirical regularities in mortality trends, including the inverse correlation between life expectancy and life span inequality, and the compression of mortality into older age ranges. These regularities have furnished important insights into the dynamics of mortality by describing, in demographic terms, how different attributes of the life table deaths distribution interrelate and change over time. However, though empirical evidence suggests that the demographically-meaningful metrics these regularities involve (e.g., life span disparity and life table entropy) are correlated to the moments of the deaths distribution (e.g., variance), the broader theoretical connections between life span inequality and the moments of the deaths distribution have yet to be elucidated. In this article we establish such connections and leverage them to furnish new insights into mortality dynamics. We prove theoretical results linking life span disparity and life table entropy to the central moments of the deaths distribution, and use these results to empirically link statistical measures of variation of the deaths distribution (e.g., variance, index of dispersion) to life span disparity and life table entropy. We validate these results via empirical analyses using data from the Human Mortality Database and extract from them several new insights into mortality shifting and compression in human populations.
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spelling pubmed-88031752022-02-01 Life span inequality as a function of the moments of the deaths distribution: Connections and insights Fernandez, Oscar E. Beltrán-Sánchez, Hiram PLoS One Research Article Recent work has unearthed many empirical regularities in mortality trends, including the inverse correlation between life expectancy and life span inequality, and the compression of mortality into older age ranges. These regularities have furnished important insights into the dynamics of mortality by describing, in demographic terms, how different attributes of the life table deaths distribution interrelate and change over time. However, though empirical evidence suggests that the demographically-meaningful metrics these regularities involve (e.g., life span disparity and life table entropy) are correlated to the moments of the deaths distribution (e.g., variance), the broader theoretical connections between life span inequality and the moments of the deaths distribution have yet to be elucidated. In this article we establish such connections and leverage them to furnish new insights into mortality dynamics. We prove theoretical results linking life span disparity and life table entropy to the central moments of the deaths distribution, and use these results to empirically link statistical measures of variation of the deaths distribution (e.g., variance, index of dispersion) to life span disparity and life table entropy. We validate these results via empirical analyses using data from the Human Mortality Database and extract from them several new insights into mortality shifting and compression in human populations. Public Library of Science 2022-01-31 /pmc/articles/PMC8803175/ /pubmed/35100280 http://dx.doi.org/10.1371/journal.pone.0262869 Text en © 2022 Fernandez, Beltrán-Sánchez https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Fernandez, Oscar E.
Beltrán-Sánchez, Hiram
Life span inequality as a function of the moments of the deaths distribution: Connections and insights
title Life span inequality as a function of the moments of the deaths distribution: Connections and insights
title_full Life span inequality as a function of the moments of the deaths distribution: Connections and insights
title_fullStr Life span inequality as a function of the moments of the deaths distribution: Connections and insights
title_full_unstemmed Life span inequality as a function of the moments of the deaths distribution: Connections and insights
title_short Life span inequality as a function of the moments of the deaths distribution: Connections and insights
title_sort life span inequality as a function of the moments of the deaths distribution: connections and insights
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8803175/
https://www.ncbi.nlm.nih.gov/pubmed/35100280
http://dx.doi.org/10.1371/journal.pone.0262869
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