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
Flu shot does not reduce risk of death
Aug 29, 2008 |
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The widely-held perception that the influenza vaccination reduces overall mortality risk in the elderly does not withstand careful scrutiny, according to researchers in Alberta. The vaccine does confer protection against ...
A second skin
Nov 17, 2009 |
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Despite advances in treatment regimens and the best efforts of nurses and doctors, about 70% of all people with severe burns die from related infections. But a revolutionary new wound dressing developed at ...
Tree deaths have doubled across the western US
Jan 22, 2009 |
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(PhysOrg.com) -- A new study led by the U.S. Geological Survey and involving the University of Colorado at Boulder indicates tree deaths in the West's old-growth forests have more than doubled in recent decades, ...
New study finds home birth safe
Sep 18, 2009 |
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(PhysOrg.com) -- A new study by McMaster University researchers has found low-risk women who have midwives in attendance during birth have positive outcomes regardless of where the delivery takes place.
New research helps explain why bird flu has not caused a pandemic
Nov 19, 2009 |
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(PhysOrg.com) -- Bird flu viruses would have to make at least two simultaneous genetic mutations before they could be transmitted readily from human to human, according to research published today in PLoS ON ...
Research finds mangroves being fed to death
May 19, 2009 |
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(PhysOrg.com) -- New UQ Science research has found the increase in nutrients coming out of our river systems is putting pressure on our mangrove forests and making them far more susceptible to environmental ...
30-year follow-up study: 'Tremendous' impact of smoking on mortality and cardiovascular disease
May 08, 2009 |
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Non-smokers live longer and have less cardiovascular disease than those who smoke, according to a 30-year follow-up study of 54,000 men and women in Norway. Smoking, say the investigators, is "strongly" related to cardiovascular ...
Prevalence of religious congregations affects mortality rates
Jul 03, 2008 |
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LSU associate professor of sociology Troy C. Blanchard recently found that a community's religious environment – that is, the type of religious congregations within a locale – affects mortality rates, often in a positive ...
Newborn vitamin A reduces infant mortality
Medicine & Health / Medications
Jul 07, 2008 |
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A single, oral dose of vitamin A, given to infants shortly after birth in the developing world can reduce their risk of death by 15 percent, according to a study conducted by researchers at the Johns Hopkins Bloomberg School ...
Depression as deadly as smoking, but anxiety may be good for you
Medicine & Health / Psychology & Psychiatry
Nov 17, 2009 |
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A study by researchers at the University of Bergen, Norway, and the Institute of Psychiatry (IoP) at King's College London has found that depression is as much of a risk factor for mortality as smoking.
Drop in cancer deaths tied primarily to gains in behavior and screening
Dec 02, 2008 |
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Improvements in behavior and screening have contributed greatly to the 13 percent decline in cancer mortality since 1990, with better cancer treatments playing a supporting role, according to new research from David Cutler ...
The importance of grandmothers in the lives of their grandchildren
Oct 29, 2009 |
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(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their ...
Happiest European children in Netherlands, Britain ranks low
Apr 21, 2009 |
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The happiest children in Europe are in the Netherlands and Scandinavia but Britain is among the worst places to grow up, according to new British research published Tuesday.
Peer pressure builds more latrines than financial assistance
Sep 30, 2009 |
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Government subsidies persuade some people to change habits, but social shame works even better, suggests a recent study of efforts to reduce elevated childhood death and disease rates blamed on the microbial pathogens that ...
Elder self-neglect and abuse associated with increased risk of death
Aug 05, 2009 |
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Elderly individuals who have a report of self-neglect or abuse submitted to a social service agency have an associated increased risk of death, according to a study in the August 5 issue of JAMA, a theme issue on violence and hu ...
