Education and the moderating roles of age, sex, ethnicity and apolipoprotein epsilon 4 on the risk of cognitive impairment

Makkar, S.R. ; Lipnicki, D.M. ; Crawford, J.D. ; Kochan, N.A. ; Castro-Costa, E. ; Lima-Costa, M.F. ; Diniz, B.S. ; Brayne, C. ; Stephan, B. ; Matthews, F. ; Llibre-Rodriguez, J.J. ; Llibre-Guerra, J.J. ; Valhuerdi-Cepero, A.J. ; Lipton, R.B. ; Katz, M.J. ; Zammit, A. ; Ritchie, K. ; Carles, S. ; Carriere, I. ; Scarmeas, N. ; Yannakoulia, M. ; Kosmidis, M. ; Lam, L. ; Fung, A. ; Chan, W.C. ; Guaita, A. ; Vaccaro, R. ; Davin, A. ; Kim, K.W. ; Han, J.W. ; Suh, S.W. ; Riedel-Heller, S.G. ; Roehr, S. ; Pabst, A. ; Ganguli, M. ; Hughes, T.F. ; Jacobsen, E.P. ; Anstey, K.J. ; Cherbuin, N. ; Haan, M.N. ; Aiello, A.E. ; Dang, K. ; Kumagai, S. ; Narazaki, K. ; Chen, S. ; Ng, T.P. ; Gao, Q. ; Nyunt, M.S.Z. ; Meguro, K. ; Yamaguchi, S. ; Ishii, H. ; Lobo, A. ; Lobo Escolar, E. (Universidad de Zaragoza) ; De la Cámara, C. (Universidad de Zaragoza) ; Brodaty, H. ; Trollor, J.N. ; Leung, Y. ; Lo, J.W. ; Sachdev, P. ; for, Cohort, Studies, of, Memory, in, an, International, Consortium, (COSMIC)
Education and the moderating roles of age, sex, ethnicity and apolipoprotein epsilon 4 on the risk of cognitive impairment
Resumen: Background: We examined how the relationship between education and latelife cognitive impairment (defined as a Mini Mental State Examination score below 24) is influenced by age, sex, ethnicity, and Apolipoprotein E epsilon 4 (APOE*4).
Methods: Participants were 30, 785 dementia-free individuals aged 55–103 years, from 18 longitudinal cohort studies, with an average follow-up ranging between 2 and 10 years. Pooled hazard ratios were obtained from multilevel parametric survival analyses predicting cognitive impairment (CI) from education and its interactions with baseline age, sex, APOE*4 and ethnicity. In separate models, education was treated as continuous (years) and categorical, with participants assigned to one of four education completion levels: Incomplete Elementary; Elementary; Middle; and High School.
Results: Compared to Elementary, Middle (HR = 0.645, P = 0.004) and High School (HR = 0.472, P < 0.001) education were related to reduced CI risk. The decreased risk of CI associated with Middle education weakened with older baseline age (HR = 1.029, P = 0.056) and was stronger in women than men (HR = 1.309, P = 0.001). The association between High School and lowered CI risk, however, was not moderated by sex or baseline age, but was stronger in Asians than Whites (HR = 1.047, P = 0.044), and significant among Asian (HR = 0.34, P < 0.001) and Black (HR = 0.382, P = 0.016), but not White, APOE*4 carriers.
Conclusion: High School completion may reduce risk of CI associated with advancing age and APOE*4. The observed ethnoregional differences in this effect are potentially due to variations in social, economic, and political outcomes associated with educational attainment, in combination with neurobiological and genetic differences, and warrant further study.

Idioma: Inglés
DOI: 10.1016/j.archger.2020.104112
Año: 2020
Publicado en: ARCHIVES OF GERONTOLOGY AND GERIATRICS 91, 104112 (2020), [11 pp]
ISSN: 0167-4943

Factor impacto JCR: 3.25 (2020)
Categ. JCR: GERIATRICS & GERONTOLOGY rank: 34 / 53 = 0.642 (2020) - Q3 - T2
Factor impacto SCIMAGO: 0.984 - Aging (Q1) - Health (social science) (Q1) - Gerontology (Q1) - Geriatrics and Gerontology (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/Group 19
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/G03-128
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/01-0255
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/03-0815
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/06-0617
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/94-1562
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/97-1321E
Financiación: info:eu-repo/grantAgreement/ES/MINECO-ISCIII/FIS/98-0103
Tipo y forma: Artículo (PostPrint)
Área (Departamento): Area Psiquiatría (Dpto. Medicina, Psiqu. y Derm.)
Área (Departamento): Área Medic.Prevent.Salud Públ. (Dpto. Microb.Ped.Radio.Sal.Pú.)


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