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UK Women's Cohort Study (UKWCS)

About the cohort

Start date: 1994
Age at recruitment: 35-69
Sample size at recruitment: 35,372
Estimated current sample size: 12,453

The UK Women’s Cohort Study began in 1994 and is one of the largest cohort studies investigating associations between diet and cancer in the UK. A large cohort of over 35,000 middle aged women has been created encompassing a wide range of different eating patterns, including diets currently of interest to research into protection against cancer and coronary heart disease. Women in the cohort are health conscious with only 11% current smokers and 58% taking dietary supplements. 28% of the subjects self-report being vegetarian and 1% vegan.

Participants have participated in two sweeps of data collection and are followed through links to health registries to study the effects of different food and nutrient intakes on long-term health outcomes. 

Core funders

  • World Cancer Research Fund



Principal Investigator: Professor Janet Cade


Tel: 0113 343 5974

Page last updated: 13 Mar 2015


  • Gender: Female
  • Sample size: 20,000-49,999
  • Age: 20 to 39, 40 to 59, 60 to 100
  • Anthropometric: Height, Weight, Waist circumference, Hip circumference, Blood pressure
  • Physical: Cardiovascular, Reproductive
  • Psychological: Cognitive function
  • Lifestyle: Smoking, Physical activity, Dietary habits, Alcohol
  • Socio-economic: Occupation, Family circumstances, Education, Ethnic group, Marital status
  • Biological samples: Blood, Saliva, Other