Sister Study
The Sister Study is a prospective study of environmental and genetic risk factors for breast cancer and other health outcomes among a cohort of over 50,000 sisters of women who have had breast cancer. The cohort consists of women aged 35-74 without a history of breast cancer at baseline who were recruited from 2003 to 2009 from all 50 states across the United States of America and Puerto Rico. The women are followed up for at least 10 years with health updates each year, as well as detailed questionnaires about health, lifestyles, and environmental exposures every two to three years.
Study design
Cohort
Number of participants at first data collection
50,884 (participants)
Age at first data collection
35 - 74 years (participants)
Participant year of birth
Varied (participants)
Participant sex
Female
Representative sample at baseline?
No
Sample features
Countries
Year of first data collection
2003
Primary Institutions
National Institute of Environmental Health Sciences (NIEHS)
Profile paper DOI
Funders
National Institute of Environmental Health Sciences (NIEHS)
National Institute on Minority Health and Health Disparities (NIMHD)
Ongoing?
Yes
Data types collected
- Interview – phone
- Physical environment assessment (e.g. pollution, mould)
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- 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
