Abstract：
BACKGROUND:Whilst many studies have analysed predictors of longitudinal cognitive decline, few have described their impact on population distributions of cognition by age cohort. The aim of this paper was to examine whether gender, education, social class and birth cohort affect how mean population cognition changes with age. METHODS:The Medical Research Council Cognitive Function and Ageing Study (MRC CFAS) is a multi-centre population based longitudinal study of 13,004 individuals in England and Wales. Using ten years of follow-up data, mean Mini-mental State Examination (MMSE) scores were modelled by age and birth cohort adjusting for non-random drop-out. The model included terms to estimate cohort effects. Results are presented for five year age bands between 65-95 years. RESULTS:At a population level, women show greater change in MMSE scores with age than men. Populations with lower education level and manual work also show similar effects. More recent birth cohorts have slightly higher scores. CONCLUSION:Longitudinal data can allow examination of population patterns by gender, educational level, social class and cohort. Each of these major socio-demographic factors shows some effect on whole population change in MMSE with age.
journal_name
BMC Geriatrjournal_title
BMC geriatricsauthors
Matthews F,Marioni R,Brayne C,Medical Research Council Cognitive Function and Ageing Study.doi
10.1186/1471-2318-12-45subject
Has Abstractpub_date
2012-08-13 00:00:00pages
45issn
1471-2318pii
1471-2318-12-45journal_volume
12pub_type
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