Three Prefecture Study
The Three Prefecture Study investigated the associations between lifestyle factors and cancer incidence in a cohort of Japanese adults. Participants were at least 40 years old at baseline and resided in Japan's Miyagi, Aichi, or Osaka prefectures. At baseline, over 100,000 participants were included in the study. Participants were from both rural and urban locations within the three prefectures.
Study design
Cohort
Number of participants at first data collection
100,629 (participants)
Age at first data collection
≥ 40 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1983
Primary Institutions
Kanazawa Medical University (金沢医科大学)
National Cancer Center (国立がん研究センター, NCC) - Japan
Osaka International Cancer Institute (大阪国際がんセンター, OICI)
Osaka University (大阪大学, OU)
Tohoku University (東北大学)
Links
No website available
Profile paper DOI
Funders
Ministry of Education, Culture, Sports, Science and Technology (MEXT/Monbusho)
Ongoing?
No
Data types collected
- Activity log (e.g. food, sleep, exercise)
- Secondary data
- Self-report questionnaire – paper or computer assisted
- None
- None
- Geographic, spatial & environmental data
- Healthcare data
- Mortality data
- Other government data
Engagement
Keywords
Consortia and dataset groups
