Open AccessDemographic characteristics of subjective cognitive decline studies’ samples. A systematic review
Author(s) -
Natália Menegassi Pedrini,
Matheus da Silva Calabresi Machado,
Matheus Fernando Manzolli Ballestero,
Francisco de Assis Carvalho do Vale
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.5327/1516-3180.627
Subject(s) - dementia , cognitive decline , cognition , disease , portuguese , medline , gerontology , perception , medicine , psychology , demography , clinical psychology , psychiatry , linguistics , philosophy , neuroscience , sociology , political science , law
Background: Subjective cognitive decline (SCD) consists on self-perception of cognition decline without an objective impairment. It has gotten attention from researchers because it may be an early stage of Alzheimer’s disease, before dementia Objectives: This research aimed to determine the characteristics of the SCD studies’ samples across the countries. Methods: It was searched for complete articles from 2014 to 2020 on MEDLINE, PubMed, EMBASE and others, using the keyword “Subjective Cognitive Decline” and its respective translations in both Spanish and Portuguese. Results: Of 3,470 papers, 487 were eligible. The mean age of SCD participants was 71.98 in 2014 to 66.14 in 2020, (mean 66.81) as the number of participants, there were 104 in 2014 and 5233 in 2020 (mean: 1729), and 59% of the participants were women. The mean scholar years were 13.4, in 2014 there were 8 articles and 167 in 2020. Conclusions: The increased number of publications and samples represents the crescent importance of the theme. The decrease in the mean age, possibly demonstrates efforts to an earlier detection of the condition. The majority of women, could represent a prevalence of this gender on the disease, or be related with the fact that woman participate more in scientific studies and also use the health services more than men. The high level of scholarly contrasts with the wrong conception of dementia being related only to poor education, showing that it also affects higher levels of schooling.