Japan Collaborative Cohort Study (JACC)
The JACC Study was a large-scale prospective study that investigated the risk factors of cancer in a cohort of nearly 111,000 participants aged 40 to 79 years old from across Japan. Around 127,500 healthy inhabitants from 7 regions within Japan were enrolled after completing baseline in 1988-1990. Of the participants who completed baseline, participants aged 40 to 79 years were selected for long-term follow-up. This cohort were followed for up to 20 years through linkage and follow-up surveys until 2009.
Study design
Cohort
Number of participants at first data collection
110,792 (participants)
Age at first data collection
40 - 79 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
the adult population of Japan
Sample features
Country
Year of first data collection
1988
Primary Institutions
Hokkaido University (北海道大学, Hokkaidō daigaku) (Academic, Japan)
Nagoya University (名古屋大学, NU) (Academic, Japan)
Profile paper DOI
Funders
Ministry of Education, Culture, Sports, Science and Technology (MEXT/Monbusho) (Government, Japan)
Ongoing?
No
Data types collected
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- Self-completed questionnaire – paper or computer assisted
- None
- None
- Census data
- Healthcare data
- Mortality data
Engagement
Keywords
Consortia and dataset groups
