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Cohort Acronym

Cohort type
General population-based cohort


Participant type
No diagnosis

Recruitment Period 2000-02 
Sample size at start or planned sample size if still recruiting 38763  
Estimated Current Sample Size 20,000 to 49,999 
Age at Recruitment >0   
Gender Male and Female 

The Millennium Cohort Study (MCS) is a multi-disciplinary research project following the lives of around 19,000 children born in the UK in 2000-01. It is the most recent of Britain’s world-renowned national longitudinal birth cohort studies. The study has been tracking the Millennium children through their early childhood years and plans to follow them into adulthood. It collects information on the childrens siblings and parents. MCS’s field of enquiry covers such diverse topics as parenting; childcare; school choice; child behaviour and cognitive development; child and parental health; parents employment and education; income and poverty; housing, neighbourhood and residential mobility; and social capital and ethnicity.

The children and families have been contacted 6 times since recruitment at ages nine months, 3, 5, 7, 11 & 14 years.

MCS is part of CLOSER (Cohort & Longitudinal Studies Enhancement Resources) which aims to maximise the use, value and impact of the UK’s longitudinal studies.

Last update: 16/01/2017

Country United Kingdom 
Contact details
Institution name Centre for Longitudinal Studies 
Principal Investiator (PI) Professor Emla Fitzsimons 
Contact email [email protected] 
Contact phone number +44 (0)20 7612 6875 
Address Centre for Longitudinal Studies
UCL Institute of Education
20 Bedford Way
Funders (Core support) Economic and Social Research Council 

Variables Collected

Brain related measures: Behaviour, Cognitive function, Mental health
Funtional rating: N/A
Anthropometric: Height, Waist circumference, Weight
Physical: Cardiovascular, Hearing and Vision, Musculoskeletal, Respiratory
Biological samples: Saliva
Genotyping: N/A
Brain imaging: N/A
Brain banking: N/A
Lifestyle: Alcohol, 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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