Education Exerts Different Effects on Cognition in Individuals with Subjective Cognitive Decline and Cognitive Impairment: A Population-Based Study

2020 ◽  
pp. 1-9
Author(s):  
Guanqun Chen ◽  
Mingyan Zhao ◽  
Kun Yang ◽  
Hua Lin ◽  
Chunlei Han ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
High Education ◽  
Cognitive Decline ◽  
Educational Level ◽  
Population Based ◽  
Education Level ◽  
Subjective Cognitive Decline ◽  
Population Based Study ◽  
Low Education ◽  
Positive Effect

Background: Education plays a potential important effect on the prevalence and incidence of dementia. However, most of the evidence based on convenience sampling. Objective: To explore effects of education on cognition in individuals with subjective cognitive decline (SCD) and cognitive impairment (CI) from a population-based study. Methods: We examined the effect of education on cognition among individuals with SCD (n = 451) and CI (n = 280) from a population-based study. A series of neuropsychological tests of memory, executive, language, and general cognitive function were used to assess the participants. Results: Multiple regression analyses revealed that education has a positive effect on cognition in both SCD and CI group in the population-based research. Further stratification study showed that the beneficial effect of education remains in the SCD group regardless of the education level, especially in the SCD participants with a low education level. However, that effect of education exists in the CI group with a low education level and disappears in the high education level. Conclusion: These results from a population-based sample suggest that high educational attainment may delay cognitive decline in the individuals with SCD regardless of high or low educational level, and high education only predicts cognition in those in the low educational level in CI group.

scholarly journals Temporal relation between depression and cognitive impairment in old age: prospective population based study

BMJ ◽  
2004 ◽  
Vol 329 (7471) ◽  
pp. 881 ◽  
Author(s):  
David J Vinkers ◽  
Jacobijn Gussekloo ◽  
Max L Stek ◽  
Rudi G J Westendorp ◽  
Roos C van der Mast
Keyword(s):  
Cognitive Impairment ◽  
Depressive Symptoms ◽  
Cognitive Decline ◽  
Old Age ◽  
Depression Scale ◽  
Population Based ◽  
Temporal Relation ◽  
Population Based Study ◽  
Delayed Recall

Abstract Objective To examine the temporal relation between depression and cognitive impairment in old age. Design Prospective, population based study with four years of follow up. Setting City of Leiden, the Netherlands. Participants 500 people aged 85 years at recruitment. Main outcome measures Annual assessments of depressive symptoms (15 item geriatric depression scale), global cognitive function (mini-mental state examination), attention (Stroop test), processing speed (letter digit coding test), and immediate and delayed recall (12 word learning test). Results At 85 years old, participants' depressive symptoms and cognitive impairment were highly significantly correlated (P < 0.001). During follow up, an accelerated annual increase of depressive symptoms was associated with impaired attention (0.08 points (95% confidence interval 0.01 to 0.16)), immediate recall (0.17 points (0.09 to 0.25)), and delayed recall (0.10 points (0.02 to 0.18)) at baseline. In contrast, depressive symptoms at baseline were not related to an accelerated cognitive decline during follow up (P > 0.05). Conclusion Caregivers should be aware of the development of depressive symptoms when cognitive impairment is present. However, the presence of depression only does not increase the risk of cognitive decline.

Diagnostic accuracy of CERAD total score in a Colombian cohort with mild cognitive impairment and Alzheimer's disease affected by E280A mutation on presenilin-1 gene

2015 ◽  
Vol 28 (3) ◽  
pp. 503-510 ◽  
Author(s):  
Daniel Camilo Aguirre-Acevedo ◽  
Fabian Jaimes-Barragán ◽  
Eliana Henao ◽  
Victoria Tirado ◽  
Claudia Muñoz ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Impairment ◽  
High Education ◽  
Mild Cognitive Impairment ◽  
Diagnostic Accuracy ◽  
Education Level ◽  
Presenilin 1 ◽  
Education Group ◽  
Low Education

ABSTRACTBackground:This study aimed to determine Consortium to Establish a Registry for Alzheimer's Disease (CERAD) Neuropsychological Assessment Battery total score diagnostic accuracy in the diagnosis of mild cognitive impairment (MCI) and dementia in familial Alzheimer's disease (FAD) with E280A mutation on presenilin-1 gene (PSEN1).Methods:A cross-sectional study was conducted in a cohort of PSEN1 E280A carriers and non-carriers assessed between January 1995 and February 2013. During the first neuropsychological assessment, 76 were having dementia, 46 had MCI, and 1,576 were asymptomatic. CERAD cut-off points were established for MCI and dementia using a Receiver Operating Characteristics (ROC) analysis, and were further analyzed according to education level in two groups: low education level (eight years or less), and high education level (over eight years).Results:The area under curve–ROC CERAD total score for dementia was 0.994 (95% CI = 0.989–0.999), and that for MCI was 0.862 (95% CI = 0.816–0.908). The dementia diagnosis cut-off point for the low education group was 54, (98.4% sensitivity, 92.6% specificity), and that for the high education group was 67 (100% sensitivity, 94.1% specificity). The MCI diagnosis cut-off point for the low education group was 66 (91.2% sensitivity, 56.4% specificity), and that for the high education group was 72 (91.7% sensitivity, 76.3% specificity).Conclusions:The CERAD total score is a useful screening tool for dementia and MCI in a population at risk of FAD.

Population-based study in Lithuania: lifestyle factors and risk of metabolic syndrome

Open Medicine ◽  
2010 ◽  
Vol 5 (3) ◽  
pp. 387-398
Author(s):  
Dalia Luksiene ◽  
Migle Baceviciene ◽  
Abdonas Tamosiunas
Keyword(s):  
Metabolic Syndrome ◽  
Alcohol Intake ◽  
International Diabetes Federation ◽  
Population Based ◽  
Education Level ◽  
Population Based Study ◽  
Aged Population ◽  
Low Education ◽  
The Relationship ◽  
Nutrition Habits

AbstractThe aim of this study was to assess the relationship between lifestyle characteristics and the probability of metabolic syndrome in the Lithuanian middle-aged population of Kaunas city. Study sample was comprised of 1403 individuals aged 35–64 years. Metabolic syndrome was defined by International Diabetes Federation definition. Lifestyle habits were evaluated using frequency questionnaires. The prevalence of metabolic syndrome was identified in 29.7% of men and 35.1% of women. In men only alcohol intake increased the risk of metabolic syndrome: wine intake daily or several times a week increased the risk of metabolic syndrome in men aged 35–49 years by 3.8-fold whereas intake of spirits once a week or more often increased the risk of metabolic syndrome in men aged 50–64 years by 2.8-fold. In women aged 50–64 years beer intake daily or several times a week (OR=11.9; p=0.015) and some unhealthy nutrition habits — intake of cakes 4 times a week or more often (OR=5.49; p=0.005) and slather spread butter on bread (OR=2.09; p=0.028) increased the odds of metabolic syndrome. Our findings indicated that frequent intake of wine and spirits increased the risk of metabolic syndrome in men; frequent intake of beer, cakes, slather spread butter on bread and low education level increased the risk of metabolic syndrome in women.

scholarly journals High education accelerates cognitive decline in dementia: A brief report from the population-based NEDICES cohort

2017 ◽  
Vol 11 (3) ◽  
pp. 297-300 ◽  
Author(s):  
Israel Contador ◽  
Félix Bermejo-Pareja ◽  
D. Lora Pablos ◽  
Alberto Villarejo ◽  
Julián Benito-León
Keyword(s):  
Older Adults ◽  
Cohort Study ◽  
High Education ◽  
Cognitive Decline ◽  
Effect Size ◽  
Educational Level ◽  
Total Sample ◽  
Population Based ◽  
Low Educated

ABSTRACT High education has been associated with faster cognitive decline after diagnosis of Alzheimer's disease (AD), but it is unclear whether these findings extend to other dementia subtypes. OBJECTIVE: We investigated whether educational attainment influences the cognitive trajectories of older adults with different dementia subtypes. METHODS: All participants were selected from NEDICES, a prospective population-based cohort study of Spanish older adults. A total sample of 53 individuals with dementia completed the MMSE-37 at Times 1 and 2 (mean follow-up=2.8±0.5 years) to assess cognitive decline. RESULTS: At follow-up, MMSE-37 scores had decreased by 3.34±4.98 points in low-educated individuals with dementia versus 7.90±4.88 points in high-educated subjects (effect size (r)=0.32, p=0.02). CONCLUSION: Educational level influenced the cognitive trajectories of patients with dementia assessed by the MMSE-37.

Subjective Spatial Navigation Complaints - A Frequent Symptom Reported by Patients with Subjective Cognitive Decline, Mild Cognitive Impairment and Alzheimer's Disease

2018 ◽  
Vol 15 (3) ◽  
pp. 219-228 ◽  
Author(s):  
Jiri Cerman ◽  
Ross Andel ◽  
Jan Laczo ◽  
Martin Vyhnalek ◽  
Zuzana Nedelska ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Cognitive Decline ◽  
Spatial Navigation ◽  
Subjective Cognitive Decline ◽  
Great Effort ◽  
Frequent Symptom ◽  
Normal Controls

Background: Great effort has been put into developing simple and feasible tools capable to detect Alzheimer's disease (AD) in its early clinical stage. Spatial navigation impairment occurs very early in AD and is detectable even in the stage of mild cognitive impairment (MCI). Objective: The aim was to describe the frequency of self-reported spatial navigation complaints in patients with subjective cognitive decline (SCD), amnestic and non-amnestic MCI (aMCI, naMCI) and AD dementia and to assess whether a simple questionnaire based on these complaints may be used to detect early AD. Method: In total 184 subjects: patients with aMCI (n=61), naMCI (n=27), SCD (n=63), dementia due to AD (n=20) and normal controls (n=13) were recruited. The subjects underwent neuropsychological examination and were administered a questionnaire addressing spatial navigation complaints. Responses to the 15 items questionnaire were scaled into four categories (no, minor, moderate and major complaints). Results: 55% of patients with aMCI, 64% with naMCI, 68% with SCD and 72% with AD complained about their spatial navigation. 38-61% of these complaints were moderate or major. Only 33% normal controls expressed complaints and none was ranked as moderate or major. The SCD, aMCI and AD dementia patients were more likely to express complaints than normal controls (p's<0.050) after adjusting for age, education, sex, depressive symptoms (OR for SCD=4.00, aMCI=3.90, AD dementia=7.02) or anxiety (OR for SCD=3.59, aMCI=3.64, AD dementia=6.41). Conclusion: Spatial navigation complaints are a frequent symptom not only in AD, but also in SCD and aMCI and can potentially be detected by a simple and inexpensive questionnaire.

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