Crude death rate by country
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 mortility rate of 9.5 in a population of 100,000 would mean 950 deaths per year in that entire population, or 0.95% out of the total. 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.
- The crude death rate, the total number of deaths per year per 1000 people. As of July 2009 the crude death rate for the whole world is about 8.37 per 1000 per year according to the current CIA World Factbook.
- The perinatal mortality rate, the sum of neonatal deaths and fetal deaths (stillbirths) per 1000 births.
- The maternal mortality rate, the number of maternal deaths due to childbearing per 100,000 live births.
- The infant mortality rate, the number of deaths of children less than 1 year old per 1000 live births.
- The child mortality rate, the number of deaths of children less than 5 years old per 1000 live births.
- The standardised mortality rate (SMR)- This represents a proportional comparison to the numbers of deaths that would have been expected if the population had been of a standard composition in terms of age, gender, etc.
- The age-specific mortality rate (ASMR) - This refers to the total number of deaths per year per 1000 people of a given age (e.g. age 62 last birthday).
In regard to the success or failure of medical treatment or procedures, one would also distinguish:
- The early mortality rate, the total number of deaths in the early stages of an ongoing treatment, or in the period immediately following an acute treatment.
- The late mortality rate, the total number of deaths in the late stages of an ongoing treatment, or a significant length of time after an acute treatment.
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.
World historical and predicted crude death rates (1950â2050)
UN, medium variant, 2008 rev.
During ancient times and the Middle Ages, the crude death rate was about 40 deaths per year per 1,000 people.
The ten countries with the highest crude death rate, according to the 2009 CIA World Factbook estimates, are:
See list of countries by death rate for worldwide statistics.
According to the World Health Organization, the 10 leading causes of death in 2002 were:
- 12.6% Ischaemic heart disease
- 9.7% Cerebrovascular disease
- 6.8% Lower respiratory infections
- 4.9% HIV/AIDS
- 4.8% Chronic obstructive pulmonary disease
- 3.2% Diarrhoeal diseases
- 2.7% Tuberculosis
- 2.2% Trachea/bronchus/lung cancers
- 2.2% Malaria
- 2.1% Road traffic accidents
Causes of death vary greatly between first and third world countries. See list of causes of death by rate for worldwide statistics.
Scatter plot of the natural log of the crude death rate against the natural log of per capita real GDP. The slope of the trend line is the elasticity of the crude death rate with respect to per capita real income. It indicates that a 10% increase in per capita real income is associated with a 1.5% decrease in the crude death rate. Source: World Development Indicators
According to Jean Ziegler (the United Nations Special Rapporteur on the Right to Food for 2000 to March 2008), mortality due to malnutrition accounted for 58% of the total mortality in 2006: "In the world, approximately 62 millions people, all causes of death combined, die each year. In 2006, more than 36 millions died of hunger or diseases due to deficiencies in micronutrients".
Of the roughly 150,000 people who die each day across the globe, about two thirds â 100,000 per day â die of age-related causes. In industrialized nations, the proportion is much higher, reaching 90%.
 See also
- ^ CIA World Factbook -- Rank Order - Death rate Search for "World".
- ^ Everitt, B.S. The Cambridge Dictionary of Statistics, CUP. ISBN 0-521-81099-x
- ^ UNdata: Crude death rate (per 1,000 population)
- ^ Jean Ziegler, L'Empire de la honte, Fayard, 2007 ISBN 978-2-253-12115-2, p.130.
- ^ a b Aubrey D.N.J, de Grey (2007). "Life Span Extension Research and Public Debate: Societal Considerations" (PDF). Studies in Ethics, Law, and Technology 1 (1, Article 5). doi:10.2202/1941-6008.1011. http://www.mfoundation.org/files/sens/ENHANCE-PP.pdf. Retrieved March 20, 2009.
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