Alzheimers Dementia: What is the national dementia risk in Brazil and what are the implications for China?

The number of people affected by dementia is expected to double every 20 years
.
By 2030, the elderly population in Latin America will also double to more than 121 million

Some countries have estimated the prevalence of dementia, but there are big differences in methods and cognitive tools used
.
However, in regions outside the United States and Europe, the incidence of dementia is rarely quantified, and even less in Latin America because of technical obstacles, such as adequate measures for many people at risk of dementia.
The structure and funding required for longitudinal research

In this way, Karolina G.
César-Freitas1 of the University of São Paulo in Brazil and others explored the incidence of dementia among the elderly in the community of Tremembé, Brazil
.
In addition, the relationship between baseline measurements of SCD and CIND/MCI and the incidence of dementia in this population was also evaluated

The research was conducted in the urban and rural areas of Tremembé
.
520 participants without dementia at baseline were invited to participate in follow-up studies

They found that after a median follow-up of 5 years, the incidence of dementia was 26.
1/1000 person-years (95% confidence interval=18.
7-36.
6/1000PY)
.

This ratio doubles with age (8.
3/1000PY for people aged 60-64, and 110.
2/1000PY for people ≥80 years old) and education level (10.
5/1000PY for those with more than 8 years of education, 59.
2/1000 for illiterate people) 1000PY)
.

Those with no dementia at baseline but with cognitive impairment have a higher risk of dementia
.

The significance of this study is that it has found that compared with other countries, the incidence of dementia in people under 65 is higher
.
In developing countries, it may be due to the low level of education and cardiac vascular disease burden heavy, high incidence of younger individuals is to be expected

Original source:
César-Freitas KG, Suemoto CK, Power MC, Brucki SMD, Nitrini R.
Incidence of dementia in a Brazilian population: The Tremembé Epidemiologic Study [published online ahead of print, 2021 Aug 2].