Mortality rate

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Mortality 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.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with mortality

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A second skin

A second skin

Biology / Biotechnology

created Nov 17, 2009 | popularity 4.9 / 5 (7) | comments 0

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 ...


New research helps explain why bird flu has not caused a pandemic

New research helps explain why bird flu has not caused a pandemic

Medicine & Health / Diseases

created Nov 19, 2009 | popularity 5 / 5 (5) | comments 1

(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 ...


Depression as deadly as smoking, but anxiety may be good for you

Medicine & Health / Psychology & Psychiatry

created Nov 17, 2009 | popularity 3.6 / 5 (5) | comments 0

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.


The importance of grandmothers in the lives of their grandchildren

The importance of grandmothers in the lives of their grandchildren

Biology / Evolution

created Oct 29, 2009 | popularity 4 / 5 (3) | comments 3

(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 ...


Inappropriate sepsis therapy leads to fivefold reduction in survival

Medicine & Health / Diseases

created Nov 05, 2009 | popularity 3.5 / 5 (2) | comments 0

Patients experiencing septic shock who receive inappropriate therapy may have a fivefold reduction in survival, shows a new study. Researchers from the University of Manitoba, Winnipeg, MB, Canada, retrospectively reviewed ...


Premature births worsen US infant death rate

Medicine & Health / Health

created Nov 03, 2009 | popularity 5 / 5 (1) | comments 0

(AP) -- Premature births, often due to poor care of low-income pregnant women, are the main reason the U.S. infant mortality rate is higher than in most European countries, a government report said Tuesday.


Prioritizing low-cost, simple health measures would save 2.5 million child lives a year

Medicine & Health / Health

created Nov 16, 2009 | popularity 5 / 5 (1) | comments 0

Almost a third of the children under age five who die each year could be saved if governments rebalance health spending to ensure low-cost, simple interventions such as safe water and hygiene, bed nets and basic maternal ...


Say yes to a clinical trial; it may be good for your health

Medicine & Health / Health

created Oct 30, 2009 | popularity 4 / 5 (1) | comments 0

Patients with chronic heart failure who agree to take part in clinical trials have a better prognosis than those who do not, according to a study reported in the November European Journal of Heart Failure.(1) The finding, say th ...


For dialysis patients, skinny is dangerous

Medicine & Health / Research

created Nov 02, 2009 | popularity not rated yet | comments 0

Dialysis patients with low body fat are at increased risk of death—even compared to patients at the highest level of body fat percentage, according to research being presented at the American Society of Nephrology's 42nd ...


For many, mammography every other year has benefits of annual screening, but less harm

Medicine & Health / Cancer

created Nov 17, 2009 | popularity not rated yet | comments 1

A comprehensive analysis of various mammography screening schedules suggests that biennial (every two years) screening of average risk women between the ages of 50 and 74 achieves most of the benefits of annual screening, ...


Treating alcohol-use disorders and tuberculosis together

Medicine & Health / Diseases

created Nov 19, 2009 | popularity not rated yet | comments 0

The integration of alcohol screening, treatment and referral into primary care and other medical settings is not routinely done. Nor are there any studies evaluating the effectiveness of integrating care for alcohol use ...