Extreme heat was associated with higher all-cause mortality from 2008 to 2017, according to a study published online May 19 in JAMA Network Open.
Environment
May 25, 2022
7
21
In recent years, the Great Barrier Reef off Australia's northeast coast has seen multiple events of mass coral bleaching as human-caused global warming has driven sustained high temperatures in the ocean.
Environment
May 19, 2022
0
11
Tropical trees in Australia's rainforests have been dying at double the previous rate since the 1980s, seemingly because of climate impacts, according to the findings of a long-term international study published in Nature ...
Plants & Animals
May 18, 2022
0
70
Canadian poultry farmers are facing fear and stress as a highly pathogenic strain of H5N1 avian influenza is currently circulating in both wild and domestic flocks across North America.
Veterinary medicine
May 07, 2022
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22
Bird flu is killing an alarming number of bald eagles and other wild birds, with many sick birds arriving at rehabilitation centers unsteady on their talons and unable to fly.
Ecology
May 05, 2022
4
83
Italian nurse Daniela Poggiali was arrested and convicted of murdering two hospital patients in 2014. Her case attracted the attention of Leiden statistician Richard Gill. After his investigation, together with an Italian ...
Mathematics
Apr 26, 2022
0
156
The inclusion of a high-flavonoid corn, developed by a Penn State maize geneticist, in the diet of broiler chickens reduced the incidence and severity of a fatal intestinal disorder known as necrotic enteritis.
Plants & Animals
Apr 21, 2022
0
18
Whales are threatened by a variety of human activities off the West Coast of the United States, including fishing, ship traffic, and pollution. Overlap between these stressors can compound effects on whale populations, but ...
Plants & Animals
Apr 06, 2022
0
14
How hot is too hot, and how dry is too dry, for the Earth's forests? A new study from an international team of researchers found the answers—by looking at decades of dying trees.
Environment
Apr 05, 2022
0
155
New research finds that longer and warmer autumns make it less likely that green-veined white butterflies will survive winter to emerge in spring. The findings are published in the British Ecological Society journal, Functional ...
Ecology
Apr 01, 2022
0
13
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
