Million Women Study
The Million Women Study is a population-based cohort study of over 1.3 million women born between 1935 and 1950 across England and Scotland. Participants were recruited between 1996 and 2001, when a recruitment questionnaire was included with an NHS letter invitation for women aged 50 to 64 to attend a routine mammography screening as part of the NHS Breast Screening Programme.
Study design
Cohort
Number of participants at first data collection
1,319,475 (participants)
Age at first data collection
50 - 64 years (participants)
Participant year of birth
1935 - 1950 (participants)
Participant sex
Female
Representative sample at baseline?
No
Sample features
Countries
Year of first data collection
1996
Primary Institutions
University of Oxford
Profile paper DOI
Funders
Cancer Research UK (CRUK)
Medical Research Council (MRC)
Ongoing?
Yes
Data types collected
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- Self-report questionnaire – online
- Self-report questionnaire – paper or computer assisted
- Interviews or focus groups
- None
- Geographic, spatial & environmental data
- Healthcare data
- Mortality data
Engagement
Keywords
Consortia and dataset groups
