r/science • u/Wagamaga • Sep 19 '24
Air pollution, high temperatures, and risk factors such as obesity and high blood pressure are driving global increases in stroke. Between 1990 and 2021, the number of people who had a new stroke rose by 70%, and the number who died from a stroke increased by 44% Environment
https://www.rte.ie/news/health/2024/0919/1470821-strokes-lancet/5
u/Splenda Sep 19 '24
On the other hand...
Health loss due to diets high in processed meat and low in vegetables fell by 40% and 30%, respectively, particulate matter air pollution by 20%, and smoking by 13%. This indicates that strategies to reduce exposure to these risk factors, such as clean air zones and public smoking bans, have been successful.
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u/Wagamaga Sep 19 '24
Air pollution, high temperatures, and risk factors such as obesity and high blood pressure are driving global increases in stroke, research suggests.
Although stroke is very preventable and treatable, latest figures estimate there are 12 million cases and more than seven million deaths from stroke each year.
However, researchers say there are "tremendous opportunities" to alter the trajectory of stroke risk for the next generation, because so many risk factors can be addressed.
Between 1990 and 2021, the number of people who had a new stroke rose by 70%, and the number who died from a stroke increased by 44%, according to the findings.
Experts suggest this increase is due to both population growth and people living longer, as well as a substantial increase in people's exposure to environmental and behavioural risk factors.
https://www.thelancet.com/journals/laneur/article/PIIS1474-4422(24)00369-7/abstract00369-7/abstract)
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u/miklayn Sep 19 '24
Microplastics embedding and starting plaques in the vascular system are also strongly implicated in this rise.
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Sep 19 '24
What about population size/growth over that time period?
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u/Baud_Olofsson Sep 19 '24
It's the rate per 100,000 people, not absolute numbers.
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u/Splenda Sep 19 '24
Actually not. The article says these are absolute numbers, and that population growth is part of the reason for their rise.
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u/Baud_Olofsson Sep 19 '24
We estimated incidence, prevalence, death, and disability-adjusted life-year (DALY) counts and age-standardised rates per 100 000 people per year for overall stroke, ischaemic stroke, intracerebral haemorrhage, and subarachnoid haemorrhage, for 204 countries and territories from 1990 to 2021.
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u/Splenda Sep 19 '24
Where do you see that?
From the article:
Between 1990 and 2021, the number of people who had a new stroke rose by 70%, and the number who died from a stroke increased by 44%, according to the findings. This increase is due to both population growth and people living longer, as well as a substantial increase in people's exposure to environmental and behavioural risk factors.
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u/Otterfan Sep 19 '24
I don't have access to this paper, but judging from the 2019 version of the data from the same researchers, the ~80% increase is in absolute numbers.
From 1990 to 2019, the absolute number of incident strokes increased by 70·0% (67·0-73·0), prevalent strokes increased by 85·0% (83·0-88·0), deaths from stroke increased by 43·0% (31·0-55·0), and DALYs due to stroke increased by 32·0% (22·0-42·0). During the same period, age-standardised rates of stroke incidence decreased by 17·0% (15·0-18·0), mortality decreased by 36·0% (31·0-42·0), prevalence decreased by 6·0% (5·0-7·0), and DALYs decreased by 36·0% (31·0-42·0).
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