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Southampton Women's Survey

About the cohort

Start date: 1998
Age at recruitment: 20-34 (women)
                                0 (children)
Sample size at recruitment: 12,583 (women)
                                          3,158 (children)
Estimated current sample size: 2,500 (women)
                                              2,500 (children)

The Southampton Women’s Survey (SWS) is the only study in Europe of women and their children, for which information was obtained from the mothers before conception of the child. The aim is to learn more about the dietary and lifestyle factors that influence the health of women and their children.

Between 1998 and 2002 the Survey team interviewed over 12,500 Southampton women aged 20 to 34 years. Those who became pregnant after interview were invited to take part in the pregnancy phase of the survey. Women received ultrasound scans at 11, 19 and 34 weeks of pregnancy, and their babies were measured soon after birth. There were 3,158 live-born singleton babies born to women in the study between 1998 and 2007. The survey has followed up these children with home visits at six months, one year, two and three years. A sample of over 1,000 children was seen at 4 years of age, more than 2,000 children have been seen at ages 6-7 years, and more than 1,000 at 8-9 years. Children at 10-12 years are currently being followed-up.

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

Core funders

  • Medical Research Council
  • British Heart Foundation
  • European Union



Principal Investigator: Professor Cyrus Cooper



Tel: 0800 783 4503

Page last updated: 13 Mar 2015


  • Gender: Male, Female
  • Sample size: 10,000-19,999
  • Age: 0 to 9, 10 to 19, 20 to 39, 40 to 59
  • Anthropometric: Height, Weight, Waist circumference, Hip circumference, Blood pressure
  • Physical: Cardiovascular, Respiratory, Musculoskeletal, Reproductive
  • Psychological: Mental health, Cognitive function
  • Lifestyle: Smoking, Physical activity, Dietary habits, Alcohol
  • Socio-economic: Occupation, Finances, Family circumstances, Housing, Education, Ethnic group, Marital status
  • Biological samples: Blood, Urine, Other