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- Q15051916 subject Q6016889.
- Q15051916 subject Q7335318.
- Q15051916 subject Q7335383.
- Q15051916 subject Q7467724.
- Q15051916 abstract "In gerontology, late-life mortality deceleration is the phenomenon of hazard rate increasing at a decreasing rate in late life – rather than increasing exponentially as in the Gompertz law – and in some cases plateauing (asymptoting) at a constant rate. Graphically, on a log-linear semi-log plot (linear in the x-axis of age, logarithmic in the y-axis of hazard rate), an exponential function becomes linear, and the Gompertz law amounts to the hazard rate increasing linearly with age. Late-life mortality deceleration corresponds to hazard rate increasing more slowly than linearly (on a log-linear graph), instead curving and possibly plateauing.Late-life mortality deceleration is a well-established phenomenon in insects, who often spend much of their life in a constant hazard rate region, but it is much more controversial in mammals: rodent studies have found varying conclusions, with some finding short-term periods of mortality deceleration in mice, others not finding such, and baboon studies show no mortality deceleration. An analogous deceleration occurs in failure rate of manufactured products; this analogy is elaborated in the reliability theory of aging and longevity.Late-life mortality deceleration was first proposed as occurring in human aging, in (Gompertz 1825) (which also introduced the Gompertz law), and observed as occurring in humans in (Greenwood & Irwin 1939), and has since become one of the pillars of the biodemography of human longevity – see history; here "late life" is typically "after 85 years of age". However, a recent paper, (Gavrilov & Gavrilova 2011), concludes that mortality deceleration is negligible up to the age of 106 in the population studied (beyond this point, reliable data were unavailable) and that the Gompertz law is a good fit, with previous observations of deceleration being spurious, with various causes, including bad data and methodological problems – see criticism.The primary reference for this article is (Gavrilov & Gavrilova 2011), which provides a detailed historical overview and discussion, together with current criticism.".
- Q15051916 thumbnail USGompertzCurve.svg?width=300.
- Q15051916 wikiPageExternalLink Mortality-NAAJ-2011.pdf.
- Q15051916 wikiPageExternalLink press-release-mortality-grossly.html.
- Q15051916 wikiPageExternalLink Heterogeneity.html.
- Q15051916 wikiPageExternalLink Mortality_Deceleration.html.
- Q15051916 wikiPageExternalLink Visualiseur?Destination=Gallica&O=NUMM-55920.
- Q15051916 wikiPageWikiLink Q10387.
- Q15051916 wikiPageWikiLink Q1130160.
- Q15051916 wikiPageWikiLink Q11448.
- Q15051916 wikiPageWikiLink Q1224446.
- Q15051916 wikiPageWikiLink Q179436.
- Q15051916 wikiPageWikiLink Q2734378.
- Q15051916 wikiPageWikiLink Q2737027.
- Q15051916 wikiPageWikiLink Q2778715.
- Q15051916 wikiPageWikiLink Q4455132.
- Q15051916 wikiPageWikiLink Q4914752.
- Q15051916 wikiPageWikiLink Q5247166.
- Q15051916 wikiPageWikiLink Q543310.
- Q15051916 wikiPageWikiLink Q574576.
- Q15051916 wikiPageWikiLink Q6016889.
- Q15051916 wikiPageWikiLink Q610548.
- Q15051916 wikiPageWikiLink Q6667644.
- Q15051916 wikiPageWikiLink Q7335318.
- Q15051916 wikiPageWikiLink Q7335383.
- Q15051916 wikiPageWikiLink Q7467724.
- Q15051916 comment "In gerontology, late-life mortality deceleration is the phenomenon of hazard rate increasing at a decreasing rate in late life – rather than increasing exponentially as in the Gompertz law – and in some cases plateauing (asymptoting) at a constant rate. Graphically, on a log-linear semi-log plot (linear in the x-axis of age, logarithmic in the y-axis of hazard rate), an exponential function becomes linear, and the Gompertz law amounts to the hazard rate increasing linearly with age.".
- Q15051916 label "Late-life mortality deceleration".
- Q15051916 depiction USGompertzCurve.svg.