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
Inappropriate sepsis therapy leads to fivefold reduction in survival
Nov 05, 2009 |
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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
Nov 03, 2009 |
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(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.
For dialysis patients, skinny is dangerous
Nov 02, 2009 |
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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 ...
Say yes to a clinical trial; it may be good for your health
Oct 30, 2009 |
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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 ...
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 ...
Patients starting dialysis have increased risk of death
Oct 27, 2009 |
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Compared to the general population, patients starting dialysis have an increased risk of death that is not attributable to a higher rate of death from cardiovascular causes, as previously thought, according to a study in ...
Weather patterns help predict dengue fever outbreaks
Oct 26, 2009 |
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High temperatures, humidity and low wind speed are associated with high occurrence of dengue fever according to a study published in the open access journal BMC Public Health.
Survival after heart attack improves in younger women
Oct 26, 2009 |
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In recent years, women, particularly younger women, experienced larger improvements in hospital mortality after myocardial infarction (MI) than men, according to a study published in the Oct. 26, 2009 issue of Archives of ...
Use of omega-3 with treatment for depression in heart disease patients may not provide benefit
Oct 20, 2009 |
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Contrary to the findings of some studies, new research indicates that augmenting antidepressant therapy with an omega-3 fatty acid supplement does not result in improvement in levels of depression in patients with coronary ...
Lack of Social Interaction Affects Health Outcomes of Breast Cancer
Oct 19, 2009 |
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(PhysOrg.com) -- Social environment can play an important role in the biology of disease, including breast cancer, and lead to significant differences in health outcome, according to results of a study published in Cancer Pr ...
Review: Pneumococcal conjugate vaccines effective at preventing child deaths
Oct 19, 2009 |
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A study published in The Cochrane Review this month concludes that pneumococcal conjugate vaccines (PCV), already known to prevent invasive pneumococcal disease (IPD) and x-ray defined pneumonia, was also effective agains ...
What makes a successful society? Social scientists find health care only one piece of the puzzle
Other Sciences / Social Sciences
Oct 15, 2009 |
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(PhysOrg.com) -- New research argues that the health of the population and the success or failure of many public health initiatives hinge as much on cultural and social factors as they do on doctors, facilities, ...
Noncorrectable vision problems associated with shorter lifespan in older adults
Oct 12, 2009 |
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Visual problems that cannot be corrected are associated with increased risk of death among individuals between the ages of 49 and 74, and all visual impairments may be associated with the risk of death in older adults, according ...
High mortality rates may explain small body size
Oct 05, 2009 |
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A new study suggests that high mortality rates in small-bodied people, commonly known as pygmies, may be part of the reason for their small stature. The study, by Jay Stock and Andrea Migliano, both of the University of Cambridge, ...
The high cost of treating alcohol-impaired drivers
Oct 05, 2009 |
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The costs of drinking and driving are all too apparent, with alcohol involved in 41 percent of all motor vehicle crash fatalities in 2006. In addition to the mortality and morbidity associated with drinking and driving, the ...
