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Cohort Acronym

Cohort type
General population-based cohort


Participant type
No diagnosis

Recruitment Period 1947 
Sample size at start or planned sample size if still recruiting 1947  
Estimated Current Sample Size 0 to 4,999 
Age at Recruitment 11   
Gender Male and Female 

The participants of the Lothian Birth Cohort 1936 were recruited to the project because they had taken part in the Scottish Mental Survey 1947. This followed the Scottish Mental Survey of 1932 from which the Lothian Birth Cohort 1921 was established.
The surveys had, respectively, tested the intelligence of almost every child born in 1921 or 1936 and attending school in Scotland in the month of June in those years. Tracing, recruiting and re-testing people who had taken part in the Surveys offered a rare opportunity to examine the distribution and causes of cognitive ageing across most of the human life course.

The LBC1936 began in 2004 and recruited 1091 of the 70,805 individuals who had taken part in the 1947 survey. The LBC1936 have been examined at mean ages of 70, 73, 76 and 79 years. The cohort has a wide range of variables: genome-wide genotyping, demographics, psycho-social and lifestyle factors, cognitive functions, medical history and examination, biomarkers (from blood and urine) and a detailed structural magnetic resonance imaging (MRI) brain scan.

Last update: 08/12/2016

Country United Kingdom 
Contact details
Institution name University of Edinburgh 
Principal Investiator (PI) Professor Ian Deary 
Contact email PI Email: [email protected] 
Contact phone number  
Address Department of Psychology
The University of Edinburgh,
7 George Square,
EH8 9JZ 
Funders (Core support) Age UK
Medical Research Council (MRC) 

Variables Collected

Brain related measures: Behaviour, Cognitive function, Mental health, Neurological
Funtional rating: Individual physiological, Individual psychological
Anthropometric: Blood pressure, Height, Weight
Physical: Cardiovascular, Hearing and Vision, Musculoskeletal, Respiratory
Biological samples: Blood, Other, Urine
Genotyping: Gene screening
Brain imaging: Magnetic resonance imaging (MRI)
Brain banking: Consent for brain donation
Lifestyle: Alcohol, Dietary habits, Physical activity, Smoking
Socio-economic: Education, Ethnic group, Family circumstances, Housing and accommodation, Marital status, Occupation and employment, Unpaid care
Health service utilisation: N/A
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