| Three dimensions of the survival curve: horizontalization, verticalization, and longevity extension. | |
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MedLine Citation:
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PMID: 15986985 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Three dimensions of the survival curve have been developed: (1) "horizontalization," which corresponds to how long a cohort and how many survivors can live before aging-related deaths significantly decrease the proportion of survivors; (2) "verticalization," which corresponds to how concentrated aging-related ("normal") deaths are around the modal age at death (M); and (3) "longevity extension," which corresponds to how far the highest normal life durations can exceed M. Our study shows that the degree of horizontalization increased relatively less than the degree of verticalization in Hong Kong from 1976 to 2001. After age normalization, the highest normal life durations moved closer to M, implying that the increase in human longevity is meeting some resistance. |
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Authors:
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Siu Lan Karen Cheung; Jean-Marie Robine; Edward Jow-Ching Tu; Graziella Caselli |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Demography Volume: 42 ISSN: 0070-3370 ISO Abbreviation: Demography Publication Date: 2005 May |
Date Detail:
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Created Date: 2005-06-30 Completed Date: 2005-07-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0226703 Medline TA: Demography Country: United States |
Other Details:
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Languages: eng Pagination: 243-58 Citation Subset: IM |
Affiliation:
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INSERM/Démographie et Santé, Val d'Aurelle, Parc Euromédecine, 34298 Montpellier 5, France. SLKCheung@valdorel.fnclcc.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Actuarial Analysis Adult Age Distribution Aged Aged, 80 and over Aging* / physiology Cohort Studies Data Interpretation, Statistical* Female Health Status Indicators Hong Kong / epidemiology Humans Infant Infant, Newborn Life Expectancy / trends* Longevity* / physiology Male Models, Statistical Morbidity / trends Mortality / trends* Population Surveillance Reference Values Sex Distribution Survival Analysis* |
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