Explore data and samples

We have a vast number of samples and phenotypic, environmental, genetic and linkage data gathered from different cohort groups over the past 30 years. There are several ways you can explore this resource.

New COVID-19 data

Data from our three COVID-19 questionnaires (May, July and October 2020) and our first home antibody test study (October 2020) is now available. You can read more about these resources below:

The datasets as described in the data notes are free to access (bar a small admin fee), but if you require other data, our usual data access processes apply. Please email alspac-data@bristol.ac.uk if you would like to find out more.

New data

Parents' Questionnaire 2020 - completed by the original study mothers and fathers (G0) with questions about health, faith and beliefs, feelings, reproductive health (females only) and future data collection thoughts.
Life@27+ questionnaire completed by the original study children with questions about childhood, faith and beliefs, feelings and shaping the future.


Cohort profile

We have published two papers detailing the ALSPAC cohort profile, as well as a short summary outlining recruitment and representativeness.

Existing data

  • Our data dictionary (zip file) includes detailed information, including frequencies, on all the data that are currently available.

  • Our variable catalogue (zip file) is a simple list of all ALSPAC variable names and labels that are available, grouped according to data source and timepoint.

  • Our variable search tool allows simple searching across variable names and labels to help with identifying what data might be available.

You may also like to use the searchable indexes of ALSPAC variables available on the CLOSER Discovery website – a search engine that allows you to explore the content of eight leading UK longitudinal studies, and provides metadata on phenotypic and environmental variables across those studies.

If we have the data and samples you require, you can request to access the data and samples for your own research.

A number of ALSPAC datasets can be accessed externally, without the need for project proposals or exec permission, for specific research or for training purposes. A list is available here.

Data summaries

If you cannot find the information you are looking for, or would like to talk to a member of our team about accessing data or samples, please email alspac-data@bristol.ac.uk (data) or bbl-info@bristol.ac.uk (samples).

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