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Is the risk of Alzheimer’s disease and dementia declining?

Overview of attention for article published in Alzheimer's Research & Therapy, March 2015
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • Among the highest-scoring outputs from this source (#31 of 1,514)
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (96th percentile)

Mentioned by

news
19 news outlets
blogs
5 blogs
policy
1 policy source
twitter
7 X users

Citations

dimensions_citation
157 Dimensions

Readers on

mendeley
214 Mendeley
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Title
Is the risk of Alzheimer’s disease and dementia declining?
Published in
Alzheimer's Research & Therapy, March 2015
DOI 10.1186/s13195-015-0118-1
Pubmed ID
Authors

Kenneth M Langa

Abstract

The number of older adults with dementia will increase around the world in the decades ahead as populations age. Current estimates suggest that about 4.2 million adults in the US have dementia and that the attributable economic cost of their care is about $200 billion per year. The worldwide dementia prevalence is estimated at 44.3 million people and the total cost at $604 billion per year. It is expected that the worldwide prevalence will triple to 135.5 million by 2050. However, a number of recent population-based studies from countries around the world suggest that the age-specific risk of dementia may be declining, which could help moderate the expected increase in dementia cases that will accompany the growing number of older adults. At least nine recent population-based studies of dementia incidence or prevalence have shown a declining age-specific risk in the US, England, The Netherlands, Sweden, and Denmark. A number of factors, especially rising levels of education and more aggressive treatment of key cardiovascular risk factors such as hypertension and hypercholesterolemia, may be leading to improving 'brain health' and declining age-specific risk of Alzheimer's disease and dementia in countries around the world. Multiple epidemiological studies from around the world suggest an optimistic trend of declining population dementia risk in high-income countries over the past 25 years. Rising levels of education and more widespread and successful treatment of key cardiovascular risk factors may be the driving factors accounting for this decline in dementia risk. Whether this optimistic trend will continue in the face of rising worldwide levels of obesity and diabetes and whether this trend is also occurring in low- and middle-income countries are key unanswered questions which will have enormous implications for the extent of the future worldwide impact of Alzheimer's disease and dementia on patients, families, and societies in the decades ahead.

X Demographics

X Demographics

The data shown below were collected from the profiles of 7 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 214 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 <1%
Unknown 213 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 40 19%
Student > Master 32 15%
Researcher 23 11%
Student > Bachelor 22 10%
Student > Postgraduate 13 6%
Other 33 15%
Unknown 51 24%
Readers by discipline Count As %
Medicine and Dentistry 41 19%
Agricultural and Biological Sciences 16 7%
Social Sciences 16 7%
Psychology 15 7%
Neuroscience 15 7%
Other 46 21%
Unknown 65 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 183. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 May 2024.
All research outputs
#224,926
of 25,848,323 outputs
Outputs from Alzheimer's Research & Therapy
#31
of 1,514 outputs
Outputs of similar age
#2,419
of 278,687 outputs
Outputs of similar age from Alzheimer's Research & Therapy
#1
of 25 outputs
Altmetric has tracked 25,848,323 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,514 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 26.5. This one has done particularly well, scoring higher than 97% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 278,687 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 25 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 96% of its contemporaries.