Research from the University of Kent has demonstrated a decline in 'son preference' by women of childbearing age in Bangladesh. However, the study also shows that fertility decisions are still influenced according to son ...
Social Sciences
Jan 22, 2021
1
6
Limiting air pollution to levels recommended by the World Health Organization could prevent more than 50,000 deaths in Europe annually, according to research published Wednesday that called for urgent action.
Environment
Jan 20, 2021
2
21
Climate change has and will continue to induce severe increases in summer temperatures throughout Europe, especially in the Mediterranean region, where Italy stands out in terms of heat-related effects on daily mortality. ...
Environment
Dec 07, 2020
1
8
The capacity of the Amazon forest to store carbon in a changing climate will ultimately be determined by how fast trees die—and what kills them. Now, a huge new study has unravelled what factors control tree mortality rates ...
Environment
Nov 09, 2020
0
258
As wildlife populations decline around the globe, understanding the natural and human-induced factors that influence their growth is critical for determining the risk of population declines and developing effective conservation ...
Plants & Animals
Nov 04, 2020
0
126
In 2008, Cyclone Nargis killed more than 138,000 people in Myanmar. It was a powerful category 3 or 4 storm at landfall, but tropical storms with similar wind speeds that year resulted in far fewer fatalities in other countries.
Social Sciences
Nov 04, 2020
4
59
The Columbia River is home to one of the West Coast's most important Chinook salmon runs. Through late spring and early summer, mature fish return from the sea and begin their arduous journey upriver to spawn. In recent years, ...
Ecology
Oct 19, 2020
4
1897
To date in 2020, 1,217 wildfires have burned 1,473,522 million acres of National Forest System lands in California; 8,486 wildfires have burned over 4 million acres across all jurisdictions in California. This current fire ...
Environment
Oct 15, 2020
0
8
Oral avian trichomonosis is an infection caused by parasitic protozoon Trichomonas gallinae. By infecting mainly the oropharyngeal and crop mucosa, the severe lesions can cause the death of the birds due to suffocation or ...
Ecology
Oct 05, 2020
0
4
Fences are one of humanity's most frequent landscape alterations, with their combined length exceeding even that of roads by an order of magnitude. Despite their ubiquity, they have received far less research scrutiny than ...
Ecology
Sep 30, 2020
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5
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.
This text uses material from Wikipedia, licensed under CC BY-SA
