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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Epidemiology of mild cognitive impairment in Brazil
1MD, PhD. Cognitive Neurology and Behavioural Group. FMUSP. São Paulo SP, Brazil.
Abstract:
With the worldwide increase in longevity and rising prevalence of cognitive disorders in the aged population, efforts have been made to characterize mild cognitive impairment (MCI) and its prevalence and/or incidence in a number of countries, given MCI may be a pre-dementia phase of degenerative conditions. The aim of this review was to retrieve the available data on the prevalence and incidence of mild cognitive impairment (MCI) in Brazil and compare these with rates found by studies conducted in other countries. The Pubmed and Scielo databases were searched using the following search terms: mild cognitive impairment, prevalence, incidence, including studies in both English and Portuguese languages. Only one study on MCI prevalence has been published in Brazil, reporting a prevalence rate of 6.1% and incidence of 13.2/1000 persons-year among those aged 60 years or over. Prevalence rates for other countries are also reported. The prevalence and incidence of MCI found in Brazil is similar to rates observed in other countries.
Insights
Mild cognitive impairment (MCI) affects 6.1% of Brazilians aged 60+, with an incidence of 13.2 per 1000 person-years. These rates are comparable to global findings for this pre-dementia condition.
Area of Science:
- Gerontology
- Neurology
- Public Health
Background:
- Global longevity is increasing, leading to a higher prevalence of age-related cognitive disorders.
- Mild cognitive impairment (MCI) is recognized as a potential precursor to dementia.
- Characterizing MCI prevalence and incidence is crucial for public health planning.
Purpose of the Study:
- To review and synthesize existing data on the prevalence and incidence of MCI in Brazil.
- To compare Brazilian MCI rates with those reported in international studies.
Main Methods:
- A systematic literature search was conducted on the Pubmed and Scielo databases.
- Keywords included "mild cognitive impairment," "prevalence," and "incidence."
- Studies in English and Portuguese were included.
Main Results:
- Only one study on MCI prevalence in Brazil was identified.
- The Brazilian study reported a prevalence of 6.1% and an incidence of 13.2/1000 person-years in individuals aged 60 and over.
- Prevalence rates from other countries were also compiled for comparison.
Conclusions:
- The prevalence and incidence of MCI in Brazil appear to be similar to those observed in other countries.
- Further research is needed to fully understand MCI epidemiology in Brazil.
- These findings have implications for dementia prevention and care strategies.
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