Change search
ReferencesLink to record
Permanent link

Direct link
Socioeconomic Status During Lifetime and Cognitive Impairment No-Dementia in Late Life: The Population-Based Aging in the Chianti Area (InCHIANTI) Study
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
2011 (English)In: Journal of Alzheimer's Disease, ISSN 1387-2877, Vol. 24, no 3, 559-568 p.Article in journal (Refereed) Published
Abstract [en]

Thousand and twelve dementia-free elderly (60-98 years old) enrolled in the InChianti Study (Italy) were evaluated at baseline (1998-2000) and at 3-year follow-up (2001-2003) with the aim of analyzing the association of lifetime socioeconomic status (SES) with prevalent and incident cognitive impairment no-dementia (CIND). SES was defined from information on formal education, longest held occupation, and financial conditions through life. CIND was defined as age-adjusted Mini-Mental State Examination score one standard deviation below the baseline mean score of participants without dementia. Logistic regression and Cox proportional-hazards models were used to estimate the association of SES with CIND. Demographics, occupation characteristics (i.e., job stress and physical demand), cardiovascular diseases, diabetes, apolipoprotein E (APOE) genotype, smoking, alcohol consumption, depressive symptoms, and C-reactive protein were considered potential confounders. Prevalence of CIND was 17.7%. In the fully adjusted model, low education (OR = 2.1; 95% confidence intervals, CI = 1.4 to 3.2) was associated with prevalent CIND. Incidence rate of CIND was 66.0 per 1000 person-years. Low education (HR = 1.7; 95% CI = 1.04 to 2.6) and manual occupation (HR = 1.9; 95% CI = 1.0 to 3.6) were associated with incident CIND. Among covariates, high job-related physical demand was associated with both prevalent and incident CIND (OR = 1.6; 95% CI = 1.1 to 2.4 and HR = 1.5; 95% CI = 1.0 to 2.3). After stratification for education, manual occupation was still associated with CIND among participants with high education (HR = 2.2; 95% CI = 1.2 to 4.3 versus HR = 1.4; 95% CI = 0.2 to 10.4 among those with low education). Proxy markers of lifetime SES (low education, manual occupation and high physical demand) are cross-sectional correlates of CIND and predict incident CIND over a three-year follow-up.

Place, publisher, year, edition, pages
2011. Vol. 24, no 3, 559-568 p.
Keyword [en]
Cognitive impairment no-dementia, epidemiology, education, finances, occupation, socioeconomic status
National Category
URN: urn:nbn:se:su:diva-66632DOI: 10.3233/JAD-2011-101863ISI: 000292496900013OAI: diva2:468591

authorCount :4

Available from: 2011-12-21 Created: 2011-12-20 Last updated: 2013-01-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Aging Research Center (ARC), (together with KI)
In the same journal
Journal of Alzheimer's Disease

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 24 hits
ReferencesLink to record
Permanent link

Direct link