NDLI: A solution to debates over the behavior of mortality at old ages

Content Provider	Springer Nature Link
Author	Weon, Byung Mook
Copyright Year	2015
Abstract	As humans live longer, the precise modeling of mortality curves in very old age is becoming more important in aging research and public health. Here, we address a methodology that utilizes a modified stretched exponential survival function where a stretched exponent is relevant to heterogeneity in human populations. This function allows better estimation of the maximum human lifespan by providing a good description of the mortality curves in very old age. Demographic analysis of Swedish females over three recent decades revealed an important trend: the maximum human lifespan (existing around 125 years) gradually decreased at a constant rate of ~1.6 years per decade, while the characteristic life gradually increased at a constant rate of ~1.2 years per decade. This trend indicates that the number of aging people is increasingly concentrated at very old age, which is consistent with the definition of population aging. Importantly analyzing the stretched exponents would help in evaluating the heterogeneity trends in human populations.
Starting Page	375
Ending Page	381
Page Count	7
File Format	PDF
ISSN	13895729
Journal	Biogerontology
Volume Number	16
Issue Number	3
e-ISSN	15736768
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-02-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human aging Mortality curves Maximum lifespan Heterogeneity Cell Biology Geriatrics/Gerontology Developmental Biology
Content Type	Text
Resource Type	Article
Subject	Aging Gerontology Geriatrics and Gerontology

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