The Lothian Birth Cohort 1936: a study to examine influences on cognitive ageing from age 11 to age 70 and beyond

I. J. Deary, A. J. Gow, M. D. Taylor, J. Corley, C. Brett, V. Wilson, H. Campbell, L. J. Whalley, P. M. Visscher, D. J. Porteous, John M. Starr

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: Cognitive ageing is a major burden for society and a major influence in lowering people's independence and quality of life. It is the most feared aspect of ageing. There are large individual differences in age-related cognitive changes. Seeking the determinants of cognitive ageing is a research priority. A limitation of many studies is the lack of a sufficiently long period between cognitive assessments to examine determinants. Here, the aim is to examine influences on cognitive ageing between childhood and old age. METHODS/DESIGN: The study is designed as a follow-up cohort study. The participants comprise surviving members of the Scottish Mental Survey of 1947 (SMS1947; N = 70,805) who reside in the Edinburgh area (Lothian) of Scotland. The SMS1947 applied a valid test of general intelligence to all children born in 1936 and attending Scottish schools in June 1947. A total of 1091 participants make up the Lothian Birth Cohort 1936. They undertook: a medical interview and examination; physical fitness testing; extensive cognitive testing (reasoning, memory, speed of information processing, and executive function); personality, quality of life and other psycho-social questionnaires; and a food frequency questionnaire. They have taken the same mental ability test (the Moray House Test No. 12) at age 11 and age 70. They provided blood samples for DNA extraction and testing and other biomarker analyses. Here we describe the background and aims of the study, the recruitment procedures and details of numbers tested, and the details of all examinations. DISCUSSION: The principal strength of this cohort is the rarely captured phenotype of lifetime cognitive change. There is additional rich information to examine the determinants of individual differences in this lifetime cognitive change. This protocol report is important in alerting other researchers to the data available in the cohort.
Original languageEnglish
Pages (from-to)28
Number of pages1
JournalBMC Geriatrics
Volume7
DOIs
Publication statusPublished - 2007

Keywords

  • Adolescent Adult Age Distribution Aged Aging/*physiology Child Cognition/*physiology Cognition Disorders/*diagnosis/*epidemiology Cohort Studies Female Follow-Up Studies Great Britain Humans Incidence Intelligence Tests Male Middle Aged Questionnaires Registries Risk Assessment Sex Distribution

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