Circulatory Risk in Communities Study (CIRCS)
The CIRCS is an ongoing study aiming to assess the lifestyle risk related factors towards the prevalence of cardiovascular disease across Japan. Initially including 5,555 participants, the study has had over 65,000 participants across several decades, with approximately 12,000 persons per 4-to-6-year period. Participants were initially from Ikawa and Minami-Takayasu, and has since expanded to include Noichi in 1969 and Kyowa in 1981, covering a broader range of regions in Japan. The study population includes residents aged 40–69 years, and follow-ups were conducted annually.
Study design
Cohort, Cohort - open
Number of participants at first data collection
5,555 (participants)
Recruitment is ongoing
Age at first data collection
40 - 69 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1963
Primary Institutions
Ehime University (愛媛大学)
Osaka University (大阪大学, OU)
University of Tsukuba (筑波大学)
Profile paper DOI
Funders
Japan Society for the Promotion of Science (JSPS)
Ministry of Health, Labor and Welfare (厚生労働省, MHLW)
Ongoing?
Yes
Data types collected
- Interview – face-to-face
- Interview – phone
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- Self-report questionnaire – paper or computer assisted
- None
- Computerized tomography (CT)
- Magnetic Resonance Imaging (MRI)
- Healthcare data
- Mortality data
- Other government data
Engagement
Keywords
