Cognitive decline is related to education and occupation in a Spanish elderly cohort

Alvarado, Beatriz; Zunzunégui, Maria-Victoria; Ser, Teodoro del; Béland, François

doi:10.1007/bf03324426

Cited by 66 publications

(44 citation statements)

References 39 publications

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“…Consistent with previous studies, our study found that people with unskilled blue-collar work were more likely to have MCI [40,41]. Li et al [42] reported that as compared to the highest position, all of the three lower positions showed higher risks of cognitive impairment with the relative risk estimates ranging from 1.2 to 2.4.…”

Section: Discussionsupporting

confidence: 80%

High Prevalence of Mild Cognitive Impairment in the Elderly: A Community-Based Study in Four Cities of the Hebei Province, China

Xie²,

Song³

et al. 2014

Neuroepidemiology

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Background: Mild cognitive impairment (MCI) has been suggested as a term for a boundary area between normal aging and dementia. This study was designed to determine the prevalence of MCI in the elderly in the Hebei province, China, and explore its related factors. Methods: Participants included 2,601 community-dwelling people aged 60 years or older who resided in the four major cities of the Hebei province. In stage 1 of the study, the Mini-Mental State Examination and the Montreal Cognitive Assessment were administered for screening purposes. In stage 2, the subjects who screened positive were further examined by neurologists. The diagnosis of MCI was made according to Petersen's criteria. Results: The estimated prevalence of MCI was 21.3%. MCI was more prevalent at age 65-69 (28.3%), and its overall rates among men (24.1%) were higher than those of women (19.9%). The higher prevalence of MCI was associated with very old age (≥80 years old; OR = 2.457, 95% CI = 1.471-4.104), male gender (OR = 1.363, 95% CI = 1.097-1.694), low education level (OR = 2.439, 95% CI = 1.623-3.663), and poor economic status (OR = 2.882, 95% CI = 1.949-4.255). Conclusions: Our findings show a high prevalence of MCI in the elderly urban population in the Hebei province. Gender, education level, and economic status may have an important role in the etiology of MCI.

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Section: Discussionsupporting

confidence: 80%

High Prevalence of Mild Cognitive Impairment in the Elderly: A Community-Based Study in Four Cities of the Hebei Province, China

Xie²,

Song³

et al. 2014

Neuroepidemiology

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“…Epidemiological studies have shown lower prevalence or incidence of dementia in elder population with high level of education (see Meng andD"Arcy, 2012 andValenzuela et al, 2006 for a review and meta-analysis). Furthermore, neuropsychological studies have reported better cognitive test performance (Plassman et al, 1995;Wilson et al, 2009) and reduced rate of cognitive decline (Albert et al, 1995;Alvarado et al, 2002;Anstey et al, 2003;Christensen et al, 1997;Evans et al, 1993;Farmer et al, 1995;Lyketsos et al, 1999;White et al, 1994) in elders with higher levels of education. These investigations suggest that education affects the risk of late life dementia by its positive association with level of cognition or through its association with decreased rate of cognitive decline in aging.…”

Section: Introductionmentioning

confidence: 99%

Relationships between years of education and gray matter volume, metabolism and functional connectivity in healthy elders

et al. 2013

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More educated elders are less susceptible to age-related or pathological cognitive changes. We aimed at providing a comprehensive contribution to the neural mechanism underlying this effect thanks to a multimodal approach. Thirtysix healthy elders were selected based on neuropsychological assessments and cerebral amyloid imaging, i.e. as presenting normal cognition and a negative florbetapir-PET scan. All subjects underwent structural MRI, FDG-PET and resting-state functional MRI scans. We assessed the relationships between years of education and i) gray matter volume, ii) gray matter metabolism and iii) functional connectivity in the brain areas showing associations with both volume and metabolism. Higher years of education were related to greater volume in the superior temporal gyrus, insula and anterior cingulate cortex and to greater metabolism in the anterior cingulate cortex. The latter thus showed both volume and metabolism increases with education. Seed connectivity analyses based on this region showed that education was positively related to the functional connectivity between the anterior cingulate cortex and the hippocampus as well as the inferior frontal lobe, posterior cingulate cortex and angular gyrus. Increased connectivity was in turn related with improved cognitive performances. Reinforcement of the connectivity of the anterior cingulate cortex with distant cortical areas of the frontal, temporal and parietal lobes appears as one of the mechanisms underlying education-related reserve in healthy elders.

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“…La démence est devenue un véritable problème de santé publique. Sa prévalence augmente considérablement avec l'âge et l'instruction [4,8,13]. Elle a un impact sur le système social, l'économie, la santé.…”

Section: Introductionunclassified

Prévalence de la démence dans une population de personnes âgées sénégalaises

Touré¹,

Coumé²,

ndongo³

et al. 2010

African Journal of Neurological Sciences

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RESUME DescriptionAvec le vieillissement de la population, survient la démence dans la population de personnes âgées. Objectif. L'objectif de cette étude était d'estimer la prévalence de cette affection dans une population de personnes âgées sénégalaises. Méthodes RésultatLa population à l'étude était composée de 872 personnes. Elles avaient un âge moyen de 67,2 ans ± 7,5. Elles étaient de sexe masculin (62,6%), mariées (79%), non instruites (50,7%). Dans les antécédents, l'HTA, le diabète, les affections respiratoires, les affections rhumatismales, la cataracte et les troubles digestifs étaient les plus fréquents. Le tabagisme et l'alcoolisme était faible alors que la marche constituait la principale activité physique. Les personnes âgées vivaient en famille avec un bon réseau social. Cinquante huit (58) personnes ont présenté une démence (6,6%). La prévalence de la maladie variait de manière significative avec l'âge et l'instruction. ConclusionCe résultat confirme que la prévalence de la démence varie en fonction de l'âge et de l'instruction de la personne âgée. SUMMARY BackgroundWith the ageing of the population, dementia is increasing.

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Cognitive decline is related to education and occupation in a Spanish elderly cohort

Cited by 66 publications

References 39 publications

High Prevalence of Mild Cognitive Impairment in the Elderly: A Community-Based Study in Four Cities of the Hebei Province, China

High Prevalence of Mild Cognitive Impairment in the Elderly: A Community-Based Study in Four Cities of the Hebei Province, China

Relationships between years of education and gray matter volume, metabolism and functional connectivity in healthy elders

Prévalence de la démence dans une population de personnes âgées sénégalaises

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