Incidence of mild cognitive impairment - a systematic review

2011 ◽  
Vol 38 (S 01) ◽  
Author(s):  
T Luck ◽  
M Luppa ◽  
S Briel ◽  
SG Riedel-Heller
Keyword(s):  
Systematic Review ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment

scholarly journals Prevalence of Mild Cognitive Impairment in Latin America and the Caribbean: A Systematic Review

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 897-898
Author(s):  
Fabiana Ribeiro ◽  
Ana Carolina Teixeira-Santos ◽  
Anja Leist
Keyword(s):  
Systematic Review ◽  
Latin America ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
English Language ◽  
Prevalence Data ◽  
Gender And Education ◽  
Precise Diagnosis ◽  
Normal Ageing ◽  
The Caribbean

Abstract Background. The population of Latin America and the Caribbean (LAC) is ageing rapidly, presenting the highest prevalence rates of dementia in the world. In this context, mild cognitive impairment (MCI) is an intermediate condition between normal ageing and dementia. However, very few studies verified the prevalence of MCI in LAC countries; earlier global systematic reviews only considered prevalence reports published in English language. Method. We conducted a systematic review to evaluate the prevalence of MCI in LAC countries and to explore the factors associated with MCI (i.e., age, gender, and education). A database search was conducted in February 2020 using PubMed, Web of Science, Scopus, Lilacs, SciELO, and EMBASE, for population-or community-based studies with MCI data for countries in LAC, published in English, Spanish, or Portuguese language. From k=2,168 identified and k=1,684 screened studies, only articles were selected that included subjects with a precise diagnosis of MCI. The studies were qualitatively assessed using the JBI critical appraisal checklist for studies reporting prevalence data tool. Results. A total of nine studies met the criteria, published between 2007 and 2019, including a total of 17,812 participants in nine countries Brazil, Mexico, Argentina, Colombia, Peru, Cuba, Dominican Republic, Venezuela, and Costa Rica. Estimates for MCI prevalence ranged from 1.2% to 34%, with most estimates between 1.2% and 6.45%. Estimates differed by age group, gender, and educational level. Discussion. This is the first systematic review of the prevalence of MCI in LAC countries, considering only high-quality studies adopting rigorous diagnostic criteria.

scholarly journals Impact of supplementation with vitamins B 6 , B 12 , and/or folic acid on the reduction of homocysteine levels in patients with mild cognitive impairment: A systematic review

IUBMB Life ◽  
2021 ◽  
Author(s):  
Gloria Olaso‐Gonzalez ◽  
Marco Inzitari ◽  
Giuseppe Bellelli ◽  
Alessandro Morandi ◽  
Núria Barcons ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cognitive Impairment ◽  
Folic Acid ◽  
Mild Cognitive Impairment

scholarly journals Repetition Priming in Individuals with Amnestic Mild Cognitive Impairment and Alzheimer’s Dementia: a Systematic Review and Meta-Analysis

2021 ◽  
Author(s):  
Liselotte De Wit ◽  
Vitoria Piai ◽  
Pilar Thangwaritorn ◽  
Brynn Johnson ◽  
Deirdre O’Shea ◽  
...  
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Repetition Priming ◽  
Meta Analysis ◽  
Healthy Older Adults ◽  
Amnestic Mci ◽  
Standard Mean Difference ◽  
Priming Paradigm

AbstractThe literature on repetition priming in Alzheimer’s disease (AD) is inconsistent, with some findings supporting spared priming while others do not. Several factors may explain these inconsistencies, including AD severity (e.g., dementia vs. Mild Cognitive Impairment; MCI) and priming paradigm-related characteristics. This systematic review and meta-analysis provides a quantitative summary of repetition priming in AD. We examined the between-group standard mean difference comparing repetition priming in AD dementia or amnestic MCI (aMCI; presumably due to AD) to controls. Thirty-two studies were selected, including 590 individuals with AD dementia, 267 individuals with amnestic MCI, and 703 controls. Our results indicated that both individuals with aMCI and AD dementia perform worse on repetition priming tasks than cognitively older adults. Paradigm-related moderators suggested that the effect size between studies comparing the combined aMCI or AD dementia group to cognitively healthy older adults was the highest for paradigms that required participants to produce, rather than identify, primes during the test phase. Our results further suggested that priming in AD is impaired for both conceptual and perceptual priming tasks. Lastly, while our results suggested that priming in AD is impaired for priming tasks that require deep processing, we were unable to draw firm conclusions about whether priming is less impaired in aMCI or AD dementia for paradigms that require shallow processing.

scholarly journals Prevalence and Risk of Mild Cognitive Impairment in Low and Middle-Income Countries: A Systematic Review

2020 ◽  
pp. 1-20
Author(s):  
Andrea M. McGrattan ◽  
Yueping Zhu ◽  
Connor D. Richardson ◽  
Devi Mohan ◽  
Yee Chang Soh ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Resource Planning ◽  
Cognitive State ◽  
Middle Income ◽  
Total N ◽  
Middle Income Countries ◽  
Increased Risk ◽  
Low And Middle Income

Background: Mild cognitive impairment (MCI) is a cognitive state associated with increased risk of dementia. Little research on MCI exists from low-and middle-income countries (LMICs), despite high prevalence of dementia in these settings. Objective: This systematic review aimed to review epidemiological reports to determine the prevalence of MCI and its associated risk factors in LMICs. Methods: Medline, Embase, and PsycINFO were searched from inception until November 2019. Eligible articles reported on MCI in population or community-based studies from LMICs. No restrictions on the definition of MCI used as long as it was clearly defined. Results: 4,621 articles were screened, and 78 retained. In total, n = 23 different LMICs were represented; mostly from China (n = 55 studies). Few studies from countries defined as lower-middle income (n = 14), low income (n = 4), or from population representative samples (n = 4). There was large heterogeneity in how MCI was diagnosed; with Petersen criteria the most commonly applied (n = 26). Prevalence of aMCI (Petersen criteria) ranged from 0.6%to 22.3%. Similar variability existed across studies using the International Working Group Criteria for aMCI (range 4.5%to 18.3%) and all-MCI (range 6.1%to 30.4%). Risk of MCI was associated with demographic (e.g., age), health (e.g., cardio-metabolic disease), and lifestyle (e.g., social isolation, smoking, diet and physical activity) factors. Conclusion: Outside of China, few MCI studies have been conducted in LMIC settings. There is an urgent need for population representative epidemiological studies to determine MCI prevalence in LMICs. MCI diagnostic methodology also needs to be standardized. This will allow for cross-study comparison and future resource planning.

Sign in / Sign up

Export Citation Format

Share Document