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 we recruited more than 14,000 pregnant women 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 intensively over two decades.

We are the most detailed study of its kind in the world and we provide the international research community with a rich resource for the study of the environmental and genetic factors that affect a person’s health and development. Through our research we aim to inform policy and practices that will provide a better life for future generations.

Who we are

The team is led by Professor Nic Timpson (principal investigator) and Professor George Davey Smith (scientific director).

The principal investigator (PI) has overall responsibility for all areas of activity in ALSPAC. The PI is supported by the ALSPAC executive in the execution of ALSPAC activities. Members of the executive are Ms Lynn Molloy (chief operating officer), Dr Sue Ring (executive director, bioresource) and Dr Kate Northstone (executive director, data). The executive is supported by members of the senior management team (SMT) for all operational activity.

ALSPAC is part of the CLOSER network, which aims to maximise the use, value and impact of UK longitudinal studies.


  • The ALSPAC executive reports to a board which provides oversight of the ALSPAC executive and supports the scientific director and PI with scientific strategy. The chair of the board is Professor Matt Hickman. The board meets each quarter.  
  • The independent scientific advisory board (ISAB) provides independent scientific advice to ALSPAC and meets twice a year.
  • The ALSPAC ethics and law committee (ALEC), is made up of clinicians, researchers, lawyers and study participants. It provides ethical oversight of ALSPAC as a whole and, where relevant, reviews individual proposals for new data collection. It meets bi-monthly.
  • The original cohort advisory panel (OCAP) is made up of 30+ study participants who meet bi-monthly to provide insights and advice on study design, methodology and acceptability for participants. 

Terms of reference


We receive core funding from the UK Medical Research Council, the Wellcome Trust and the University of Bristol and additional support from many other funders for individual projects.

Edit this page