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Subjective cognitive decline in Brazil: Prevalence and association with dementia modifiable risk factors in a population‐based study

Year: 2022
Type: article
Abstract: Introduction: Subjective cognitive decline (SCD) may be an early symptom of Alzheimer's disease. We aimed to estimate the prevalence of SCD in Brazil and its association with dementia modifiable risk factors. Methods: We used data of 8138 participants from the Brazilian Longitudinal Study of Aging (ELSI-Brazil), a population-based study that included clinical and demographic variables of individuals across the country. We calculated the prevalence of SCD and its association with dementia modifiable risk factors. Results: We found that the prevalence of SCD in Brazil was 29.21% (28.22%-30.21%), varying according to region, sex, and age. SCD was strongly associated with hearing loss, low education, psychological distress, Brown/Pardo and Black races. Discussion: The prevalence of SCD in Brazil is higher than in high-income countries. Brown/Black races and dementia modifiable risk factors were associated with SCD. Public strategies that target SCD may help mitigate the incidence of dementia.
DOI: 10.1002/dad2.12368
Authors: Wyllians Vendramini Borelli, Eduardo R. Zimmer, Andrei Bieger, Bruna Coelho, Tharick A. Pascoal, Márcia Lorena Fagundes Chaves, Rebecca Amariglio, Raphael Machado Castilhos
Institutions: Universidade Federal do Rio Grande do Sul, Hospital de Clínicas de Porto Alegre, Universidade Federal de Pelotas, University of Pittsburgh, Brigham and Women's Hospital, Harvard University, Massachusetts General Hospital
Language: English
Field: Medicine
Open Access status: gold
Estimated APC paid: $2,200
OpenAlex ID: W4309410938
FWCI: 1.953
Cites: 46
Cited by: 18
Related to: 10