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The University of Michigan Health and Retirement Study (HRS) is a longitudinal panel study that surveys a representative sample of approximately 20,000 people in the United States.

Last update: 21/01/2017

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

Based at the University of Bristol, the Avon Longitudinal Study of Parents and Children (ALSPAC), also known as Children of the 90s, is a world-leading birth cohort study. Between April 1991 and December 1992 more than 14,000 pregnant women were recruited into the study and these women (some of whom had two pregnancies or multiple births during the recruitment period), the children arising from the pregnancy, and their partners have been followed up over two decades.

The cohort has been followed intensively with annual questionnaires for the mothers, fathers and the children from age 5. A 10% sample of children were seen 10 times between 4 and 61 months for clinic assessment. Annual clinic assessment of the whole cohort was conducted from the age of 7 to 13 and 15 to 17. Assessment at age 24/25 is currently planned.

Record linkage has been completed for Education, Hospital Episode Statistics, Clinical Practice Research Datalink and Death notification and cancer cases.

1 million biological samples are held including maternal blood and urine, umbilical cord blood, placentas, paternal blood and saliva and children’s blood, saliva and urine.

The study has been extended to include grandparents, siblings, and children of the children and recruitment is underway.

ALSPAC 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: 12/01/2017