Mortality rate
hideMortality rate is a measure of the number of deaths (in general, or due to a specific cause) in some population, scaled to the size of that population, per unit time. Mortality rate is typically expressed in units of deaths per 1000 individuals per year; thus, a mortality rate of 9.5 in a population of 100,000 would mean 950 deaths per year in that entire population. It is distinct from morbidity rate, which refers to the number of individuals in poor health during a given time period (the prevalence rate) or the number who currently have that disease (the incidence rate), scaled to the size of the population.
One distinguishes:
In regard to the success or failure of medical treatment or procedures, one would also distinguish:
Note that the crude death rate as defined above and applied to a whole population can give a misleading impression. The crude death rate depends on the age (and gender) specific mortality rates and the age (and gender) distribution of the population. The number of deaths per 1000 people can be higher for developed nations than in less-developed countries, despite life expectancy being higher in developed countries due to standards of health being better. This happens because developed countries typically have a completely different population age distribution, with a much higher proportion of older people, due to both lower recent birth rates and lower mortality rates. A more complete picture of mortality is given by a life table which shows the mortality rate separately for each age. A life table is necessary to give a good estimate of life expectancy.
For more information about Mortality rate, read the full article at
Wikipedia.
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News tagged with mortality
Older adults may have a higher risk of complications and death after abdominal surgery
12 hours ago |
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The risk of complications and early death after commonly performed abdominal surgical procedures appears to be higher among older adults, according to a report in the December issue of Archives of Surgery.
Rate of autism disorders climbs to 1 percent among 8-year-olds
Dec 18, 2009 |
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Autism and related development disorders are becoming more common, with a prevalence rate approaching 1 percent among American 8-year-olds, according to new data from researchers at the University of Alabama at Birmingham ...
Kidney injury in hospital increases long-term risk of death
Dec 17, 2009 |
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Patients with sudden loss of kidney function, called acute kidney injury (AKI), are more likely to die prematurely after leaving the hospital—even if their kidney function has apparently recovered, according to an upcoming ...
New findings show how human movement may have brought Chagas disease to urban Peru
Dec 15, 2009 |
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New research shows how the migration and settlement patterns associated with the rapid urbanization of Peru may link to Chagas disease transmission. The study, published December 15 in the open-access journal PLoS Neglected Tr ...
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Heart transplant patients appear to have elevated risk for multiple skin cancers
11 hours ago |
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Many heart transplant patients develop multiple skin cancers, with increased risk for some skin cancers among patients with other cancers and with increasing age, according to a report in the December issue of Archives of ...
Wild chimps have near human understanding of fire, study says
Dec 17, 2009 |
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(PhysOrg.com) -- The use and control of fire are behavioral characteristics that distinguish humans from other animals. Now, a new study by Iowa State University anthropologist Jill Pruetz reports that savanna ...
Cancer survival disparities for most minority populations increase as cancers become more treatable
Dec 17, 2009 |
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Racial and ethnic disparities in cancer survival are greatest for cancers that can be detected early and treated successfully, including breast and prostate cancer, according to a study by researchers at Columbia University's ...
Breathlessness eased in patients with rare, often fatal disease
Dec 17, 2009 |
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Patients with a rare, deadly disease that mostly affects young women felt a dramatic reduction in breathlessness using an approved drug, according to study results published online today in The Journal of Heart and Lung Tr ...
TGen analysis identifies biomarkers for diabetic kidney failure
Dec 16, 2009 |
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Researchers using a DNA analysis tool developed by the Translational Genomics Research Institute (TGen) and UCLA have identified genetic markers that could help treat chronic kidney disease among diabetics.
MRSA leads to worse outcomes, staggering expenses for surgical patients
Dec 15, 2009 |
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Post-surgical infections significantly increase the chance of hospital readmission and death and cost as much as $60,000 per patient, according to Duke University Medical Center researchers who conducted the largest study ...
Septic shock: Nitric oxide beneficial after all
Dec 15, 2009 |
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Scientists at VIB and Ghent University in Flanders, Belgium have found an unexpected ally for the treatment of septic shock, the major cause of death in intensive care units. By inducing the release of nitric oxide (NO) gas ...
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