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Showing 1 to 20 of 32 for “"life tables"”.
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Full life tables for South Africa from vital registration data, 2006-2008
This research derives a set of full life tables for South Africa as a whole and by population group using vital registration data for the period 2006-2008. Given that not all deaths are registered, the research assesses the level of completeness of death registration for the national population and …
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On Logistic Regression Approach to Survival Data and Power Divergence Statistics for Life Tables
Efron (1988) proposes the use of standard logistic regression techniques to estimate hazard rates and survival curves from survival data. These techniques allow statisticians to use parametric regression modeling on survival data in a flexible way that provides both estimates and standard errors. …
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Estimates of the level and shape of mortality rates in South Africa around 1985 and 1990 derived by applying indirect demographic techniques to reported deaths
… of the Black population in mid-1985. The life tables thus produced are then combined with the official South African Life Tables for Whites, Coloureds and Asians to produce a weighted average national life tables circa 1985. These national life tables are then compared with those produced …
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Some observations on the population dynamics of the Australian soldier fly Inopus Rubriceps Macquart (Diptera: Stratiomyidae)
… can be made about an insect, the development of life tables provides much of the background biological and ecological information needed to put the development of control measures on a rational basis. Thus, the main aim of this work was to test the feasibility of developing life tables for the …
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Reproduction And Survivorship Of Two Species Of Daphnidae
… were studied at 10°, 15°, 20°, and 25°C. Life tables were calculated at all temperatures from survivorship data for each species. Replacement rates of S. kingi and S. serrulatus, respectively, were 0.715 and 2.789 at 10°C, 2.637 and 3.310 at 15°C, 3.332 and 5.133 at 20°C, and 12.469 and …
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The Epizootiology of Nosema Pyrausta (Paillot) in The European Corn Borer, Ostrinia Nubilalis, in Central Illinois
… of the corn borer are presented as partial life tables. First generation infection levels were determined primarily by the transovarial input from the first moth flight, while second generation infection levels were determined by the interaction between horizontal transmission and the first …
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Analysis of the Impact of Air Pollutants, PM2.5 and O3, on Life Expectancy and Quality Adjusted Life-Expectancy in Canada
… infarction (AMI). The outcome measures are life expectancy and quality-adjusted life years. The methodologies used include: life tables, discounting, concentration-response function (CRF), quality of life scores and Monte Carlo simulation. The highest estimates of impact due to ozone and …
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Effect of time horizon on incremental cost-effectiveness ratios
… treatment. A hypothetical model based on US life tables (for a 64-year old) assumed that the new and usual treatment strategies resulted in patient survivals identical to a person who is 5 and 10 years older, respectively, than the patient's chronologic age. The hazard rates over time were …
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African American Mortality: A Biocultural Study of Missouri Cemetery Records
… will reveal discrepancies when compared to life table analyses. While the post-1980 “return migration” of urban African Americans to rural regions is of interest to scholars, the lack of death data needed to study them is often non-existent, often resulting in the exclusion of these …
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Naděje dožití bez demence v Evropě
Dementia-free life expectancy in Europe Abstract Population ageing is associated with a growing number of people living with dementia. Although improvements in healthcare have led to increases in life expectancy at birth, it remains unclear to what extent this also means longer healthy lives. This …
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Survivor bond models for securitizing longevity risk
… rates deviate from what is projected from prior life tables. This is due to discoveries in biological sciences, improved public health measures, and nutrition, which have dramatically increased life expectancy. Longevity risk raises life insurers’ liability, increasing product costs and reserves. …
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Population ecology and parasitism in bumble bees (Hymenoptera: apidae)
… increased proportion of foragers. Age-specific life tables and survivorship curves were developed for workers within colonies, and for workers in cohorts based on emergence date. An increase in brood developmental times occurred near the end of the colony cycle. In the two B. pennsylvanicus …
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Essays On Aging-Related Disease In The U.s. Population
… In the second essay, I use multiple-decrement life tables to estimate age-specific lifetime risks of dementia for a dementia-free person. I estimate that about a quarter of dementia-free 70-year-old males and a third of females will develop dementia in their lifetimes. Although interventions …
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Combining forensic anthropological and geological approaches to investigate the preservation of human remains in British archaeological populations and their effects on palaeodemography
Palaeodemographic studies enable the lifespan and health of a population to be studied and subsequent influences deduced from the analysis of biological profiling data. The aim of this research was to produce the demographic profiles for the medieval sites of Poulton Chapel and St Owens, …
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Simulation and sensitivity analysis of the choice of open interval, the methods of open interval, the methods of estimating life expectancy, completeness and 6 in the SEG method of estimating mortality
… age as well as well as methods of estimating life expectancy. completeness and 6. This task is accomplished by starting with a base population with known mortality then applying random errors in completeness. age misstatement and net migration to it to generate numerous datasets consisting of …
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THE LAYERED SOCIETY: MATERIAL LIFE IN PORTSMOUTH, NH, 1680 TO 1740 (NEW HAMPSHIRE)
<p>This dissertation evaluates the material life and economic culture of Portsmouth, New Hampshire, from 1680 to 1740 through an analysis of the probate inventories of the estates of 234 males. It also details the methodology used to determine the twin biases of probate records--that people whose …
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Biology of immature Culicoides variipennis ssp. australis (Coq.) (Diptera:Ceratopogonidae) at Saltville, VA
… were documented for 1983-1984 at Saltville._ Life tables and survivorship curves were calculated for the overwintering generation and the first summer generations for 1983 and 1984. For the overwintering generation, there was a relatively constant mortality rate between successive ageclasses …
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Enhancing biotic mortality of the potato leafhopper, Empoasca fabae
… from June--September in 1999 and 2000. Partial life tables were constructed for E. fabae nymphs. For the 1st growing period, E. fabae nymphal mortality was 70% and 49% in 1999 and 2000, respectively. During the last growing period, total nymphal mortality was relatively low (<25%) in both …
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Release and monitoring of Laricobius nigrinus (Coleoptera: Derodontidae) for biological control of the hemlock woolly adelgid in the eastern US
… US, where is has been released recently. Partial life tables were constructed for HWA sistentes at four sites for 2 yr in Seattle. Unspecified causes of nymph and adult mortality were high and L. nigrinus was the dominant predator of ovisacs. Adult L. nigrinus abundance was positively related to …
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TRENDS IN LIFE EXPECTANCY AND MORTALITY: A COMPARISON OF HISPANICS AND NON-HISPANICS IN THE SOUTHWEST UNITED STATES, 1990 TO 2010
… The study had three specific aims: 1) estimate life expectancy for Hispanics and non-Hispanics, 2) decompose life expectancy by cause-specific mortality, and 3) develop cohort and cause-specific mortality rates from 1990 to 2010. Analyses included evaluation, adjustment and correction of …
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